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Form D06
(June 2021)

2020 l 2021

In response to your request for Test Information
Release materials, this booklet contains the test
questions, scoring keys, and conversion tables used
in determining your ACT scores
...


© 2021 by ACT, Inc
...

NOTE: This test material is the confidential copyrighted property of ACT, Inc
...
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...
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abilities highly related to high school course work and
success in college
...

The questions in each test are numbered, and the
suggested answers for each question are lettered
...

For each question, first decide which answer is best
...
Then, locate the
oval in that row lettered the same as your answer
...
Use a soft lead pencil
and make your marks heavy and black
...

Mark only one answer to each question
...
For each
question, make certain that you mark in the row of ovals
with the same number as the question
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Your score on each test will be based only
on the number of questions you answer correctly during
the time allowed for that test
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question even if you must guess
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in or alter ovals for a test after time is called for that test
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Do not fold or tear the pages of your test booklet
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1

ENGLISH TEST
45 Minutes—75 Questions

DIRECTIONS: In the five passages that follow, certain
words and phrases are underlined and numbered
...
In most cases, you are to choose the
one that best expresses the idea, makes the statement
appropriate for standard written English, or is worded
most consistently with the style and tone of the passage
as a whole
...
” In some cases, you will find in
the right-hand column a question about the underlined
part
...


1

You will also find questions about a section of the passage, or about the passage as a whole
...

For each question, choose the alternative you consider
best and fill in the corresponding oval on your answer
document
...
For
many of the questions, you must read several sentences
beyond the question to determine the answer
...


PASSAGE I

Here Comes the Sun
It’s winter, and the sun’s rays no longer shine
1
...
Rjukan, which is
B
...
Rjukan—
D
...

1

While all of Norway has precious few sunlit hours in
winter, Rjukan is tucked in a valley between two mountain
ridges that completely block sunlight from late September
to mid-March
...
”
After moving to Rjukan in 2001,

2
...
NO CHANGE
G
...

H
...

J
...


the prolonged winter gloom alarmed artist Martin
2

Andersen
...
The writer is considering revising the underlined portion to the following:
redirect sunlight into the town
...
Yes, because it indicates the materials Andersen
hoped to use to build the mirrors
...
Yes, because it more specifically establishes what
Andersen hoped to do
...
No, because it suggests that Andersen’s idea differed from the ideas mentioned in the following
sentence
...
No, because the original sentence more succinctly
establishes what Andersen’s plans were
...

3

ACT-D06

2

GO ON TO THE NEXT PAGE
...
F
...

H
...


same purpose, and instead Sam Eyde, the town’s
4

founder, had considered the idea
...
Which choice provides the most specific reason Eyde
could not build the sun mirrors?
A
...
had come to understand that building the mirrors
wasn’t feasible,
C
...
had recognized that the project could not succeed,

did not follow through on construction of the mirrors,
5

and he abandoned the idea
...
Three 550-square-foot mirrors were airlifted to
6

the top of a ridge 1,475 feet above Rjukan
...
Since a
8

crane would have been too heavy for helicopters to lift,
workers used tools such as thirty-foot wooden tripods
9

to install the mirrors
...
F
...

H
...


NO CHANGE
reality
...
A
...

C
...


NO CHANGE
mountain because
mountain and
mountain,

8
...

G
...

J
...

lead to the cliffside construction cite
...


9
...

B
...

D
...
F
...

H
...


The three mirrors team up as a group to create a
10

bright 2,000-square-foot ellipse of light in the town

NO CHANGE
help each other out
are synchronized
conspire together

11
...
reveals the size and location of the light reflected
by the mirrors
...
describes the mechanism that adjusts the mirrors
during the day
...
clarifies where the mirrors are located in relation
to the town
...
specifies why the mirrors adjust throughout the
day
...
To keep the light on the square, the mirrors adjust
11

every ten seconds, tracking the sun as it crosses the sky
...


1

1

They’re controlled wirelessly by a company
in Germany, and monitored, in Rjukan and on
12

the mountain via webcam
...

In October 2013, residents rejoiced
due to the bright light when the Solspeil first
14

shone a bright beam of sunlight into Rjukan
...
F
...

H
...


NO CHANGE
Germany and, monitored in Rjukan, and
Germany and monitored in Rjukan, and,
Germany and monitored in Rjukan and

13
...

B
...

D
...
F
...

H
...


NO CHANGE
when the Solspeil, controlled remotely,
at the initial time the Solspeil
when the Solspeil

Question 15 asks about the preceding passage
as a whole
...
Said one, “Who’d have thought it? I’ve
stepped out to get a bit of sun
...
Suppose the writer’s primary purpose had been to
describe a technological project that benefited a community
...
Yes, because it focuses on the international attention Rjukan has experienced since the completion
of the Solspeil
...
Yes, because it describes the planning and construction of the Solspeil, which brought the sun to
Rjukan residents in winter
...
No, because it focuses mainly on the history of
Rjukan and its founder, Sam Eyde
...
No, because it discusses mainly Andersen’s artwork, comparing the Solspeil to his work in other
cities
...
The word hints at the
importance of oral tradition hundreds of years ago in
Anglo-Saxon England
...


ACT-D06

4

GO ON TO THE NEXT PAGE
...

Narratives such as the heroic epic Beowulf and the
mournful poem The Seafarer has been passed on
16

by people being conversant for centuries
...
A
...

C
...


NO CHANGE
by folks rattling them off
through spoken word
in chitchat

18
...
NO CHANGE
G
...
(audiences could range from a few to many
people)
J
...

19

Scops became the keepers of poems,
songs were written, and even the histories
20

of their people
...
There are, generally,
22

19
...

B
...

D
...

on a regular basis
...


20
...

G
...

J
...
A
...

C
...


NO CHANGE
for
so
DELETE the underlined portion
...
F
...

H
...


NO CHANGE
in other words,
nonetheless,
in fact,

23
...
NO CHANGE
B
...

C
...

D
...


several records of royals giving land to deserving scops
...
F
...

H
...


5

GO ON TO THE NEXT PAGE
...
The writer is considering revising the underlined portion to the following:
which could be used as status symbols to display one’s success—
Given that the information is accurate, should the
writer make this revision?
F
...

G
...

H
...

J
...


Coins or gold rings—these could be quite useful—were
24

25
...

B
...

D
...

25

[4]

To achieve this kind of success, a scop needed to
transcend being just an entertainer in a mead hall
...
Which of the following true statements, if added here,
would create the most effective transition between the
first sentence of the paragraph and the information that
follows?
F
...

G
...

H
...

J
...


While mindful of the expectation that they would glorify
their leaders, scops set standards for morality through
their celebration of heroes and condemnation of villains
...
Additionally, scops preserved and
conveyed through history from one generation to the
27

next
...
More than a storyteller,
the scop was a historian, teacher, and messenger of

27
...

B
...

D
...


28
...

G
...

J
...
Thereby providing
next, providing
next
...
The scop’s call of “Hwæt!” was
an invitation to audiences to gather and celebrate their
culture
...


1

1
Questions 29 and 30 ask about the preceding passage as a whole
...
The writer wants to add the following sentence to the
essay:
Today, poets are thought of mainly as writers
...
Point A in Paragraph 1
...
Point B in Paragraph 1
...
Point C in Paragraph 2
...
Point D in Paragraph 2
...
Suppose the writer’s primary purpose had been to discuss one type of person who was significant in early
Anglo-Saxon society
...
Yes, because it describes the role of scops and
explains how they safeguarded the history and
values of Anglo-Saxon communities
...
Yes, because it discusses early Anglo-Saxon ceremonies and the kinds of people who participated in
them
...
No, because it mainly focuses on describing the
specific poems and stories that scops recited rather
than on Anglo-Saxon communities themselves
...
No, because it instead focuses on the moment in
history when the role of the scop began to dwindle
...
He’s a teacher, but in the summer he salvages
sunken logs from lakes and sells them
...


31
...

B
...

D
...
F
...

H
...


NO CHANGE
morning we walked to the dock and readied
morning, walking to the dock and readying
morning, walking to the dock to ready

33
...

B
...

D
...
F
...

H
...


NO CHANGE
the images showed
they showed
showed

After a chilly ride across Moosehead Lake, we
reached a bay that Uncle Lee had tagged on his GPS
...
Soon, ghostly
images appeared on the screen, showing what
34

35
...
NO CHANGE
B
...
range
D
...
They weren’t matchsticks, of course, but
sunken logs
...


1

1

For centuries, Maine loggers sent their harvests

to market by floating them down rivers
...
Each year, some of the logs
36
...
a description of factors that differentiate Moosehead Lake from other lakes
...
an indication of why the submerged logs have
remained in good condition
...
a clarification about the quality of the wood in
submerged logs
...
an explanation of the underwater decomposition
process
...
In the deep water, protected from insects and oxygen,
36

the wood remained well preserved
...
A
...
the underwater video camera’s view of the grapple
arm:
C
...
the underwater video camera’s view:

and showed the underwater video camera’s view:
37

the boat’s grapple arm reaching for a log

that Uncle Lee thought was birch
...
When the log surfaced, it looked like
a gunked-up, mega-big telephone pole
...
Because it was felled by an axe he explained
41

the tree was probably cut in the mid-nineteenth century
...
A
...

C
...


NO CHANGE
pulling
pulled
pull

40
...

G
...

J
...
A
...

C
...


NO CHANGE
axe, he explained,
axe, he explained
axe he explained,

42
...
where it is now
...
after the word age
...
after the word tree (and before the dash)
...
after the word looking
...
Which choice puts the age of the tree into perspective
by using a specific detail?
A
...
may have started life a century before the Declaration of Independence
...
had spent many more years under water than it had
on land
...
first sprouted from seed a remarkably long time
ago
...

43

ACT-D06

38
...

G
...

J
...


1

1

44
...
NO CHANGE
G
...
I still struggled with
J
...
Which choice most effectively concludes the essay by
alluding to both the past and future of the salvaged
logs?
A
...
The kind of wood we’d recovered—old-growth,
tight-grained hardwood—wasn’t really available
from commercial loggers anymore
...
Our load of high-quality wood would become
beautiful furniture or flooring, complete with an
immersing backstory
...
With those heavy logs along for the ride, the boat
moved a bit sluggishly, but even so we made it
home by dinnertime
...
Uncle Lee said that one day last year he hauled
45

out twenty logs, but some days he’d leave the lake without
45

finding a single salvageable log
...
Wadhwa was struck by how similar the
rock’s chemical makeup was to that of Earth rocks
...


46
...

G
...

J
...
A
...

C
...


NO CHANGE
her if she wanted to see a meteorite
her, if she wanted to see a meteorite,
her, if she wanted, to see a meteorite

48
...

G
...

J
...
A
...

C
...


NO CHANGE
it was there that
where
DELETE the underlined portion
...
Wadhwa used a mass spectrometer to
identify and measure the elements in meteorite samples
...


1

1

The mass spectrometer revealed the rocks’ age and

50
...
NO CHANGE
G
...
hinted at
J
...
This
50

information helped Wadhwa better understand the
51

geological history of Mars
...
A
...

C
...


NO CHANGE
facilitated
assisted
aided

52
...

G
...

J
...
The
Mars and the asteroid belt, the

53
...

B
...

D
...
F
...

H
...


NO CHANGE
In other words,
Even so,
Instead,

55
...

B
...

D
...

With more than 1,800 space rocks, including samples
from Mars and the asteroid belt
...

Because meteorites contain material that predates Earth,
53

Wadhwa and her colleagues can learn about the elements
that were present when the Sun, planets, and moons
formed
...
For example, a 2010 study she cowrote
54

found that the solar system is likely 1
...
In 2013, Wadhwa and two
colleagues discovered evidence that a supernova exploded
55

before the planets formed likely seeded our solar system
with many essential elements
...
At this point, the writer is considering adding the following sentence:
Wadhwa has twice been to Antarctica to hunt
for meteorites
...
Yes, because it emphasizes that Wadhwa is passionate about studying meteorites
...
Yes, because it further demonstrates the meteorite
expertise Wadhwa has developed
...
No, because it presents information that is discussed earlier in the essay
...
No, because it is only loosely related to the content of the paragraph
...


1

1

Of the many honors Wadhwa’s research has

earned her, perhaps the most meaningful one came
57

from astronomers, Carolyn, and Gene Shoemaker
...
A
...

C
...


NO CHANGE
herself,
itself,
for it,

58
...

G
...

J
...
A
...

C
...


NO CHANGE
Planet, meaning that one day,
Planet, meaning that, one day
Planet, meaning, that one day

60
...

G
...

J
...
A
...

C
...


NO CHANGE
may be less renowned than
may be less renowned then
maybe less renowned then

62
...

G
...

J
...
A
...

C
...


NO CHANGE
Stax, infused with
Stax, which had
Stax with

Wadhwa
...
”
60

PASSAGE V

The Soul of Stax
[1]
Stax Records of Memphis, Tennessee,
maybe less renowned than Detroit’s Motown,
61

but its contributions to 1960s American soul music
has been no less significant
...

[A] But beyond genre, it was the people, their methods,
and even the building itself (which had once been a
movie theater) that made Stax one of the most
exceptional recording studios of the era
...


1

1

[2]

Stax’s unlikely founders, siblings Jim Stewart and
Estelle Axton, were bankers themselves whom loved
64

music
...
Their
66

open-door policy allowed unestablished or unconventional

67

names at Stax
...
Jones, Carla Thomas, and

68

[3]

That conversation included a range of perspectives
rarely found at other studios
...
The “Stax
family” also included people of various ages and
economic backgrounds, all were contributing to Stax’s
unique sound
...
A
...

C
...


NO CHANGE
Although they knew
While knowing
Knowing

66
...

G
...

J
...
Which choice would provide the most effective transition between this paragraph and the next paragraph?
F
...
worked closely with Stewart and Axton to make
Stax a successful studio
...
all became a part of the musical “conversation”
happening there
...
launched their careers at Stax
...
If the writer were to delete the underlined portion, the
essay would primarily lose a detail that:
A
...

B
...

C
...

D
...


artists (often ignored by bigger studios) to make their

who recorded hits there
...
F
...

H
...


70

12

69
...

B
...

D
...
F
...

H
...


NO CHANGE
of this contributed
contributing
contributed

GO ON TO THE NEXT PAGE
...
At most
studios, performers worked, from previously arranged
71

sheet music
...
Otis Redding might walk in and sing a

71
...

B
...

D
...
F
...

H
...


NO CHANGE
In contrast,
Likewise,
Besides,

73
...

B
...

D
...
F
...

H
...


NO CHANGE
building, consequently,
building, however,
building

few lyrics to the band
...
Then, they’d record the song without
ever putting the notes on paper
...
Recording equipment in the 1960s was
rudimentary by today’s standards
...


theater’s sloped floor and bass-heavy movie speakers
gave recordings a deep, raw tone so distinctive that

75
...

If the writer were to add this sentence, it would most
logically be placed at:
A
...

B
...

C
...

D
...


aficionados can often recognize a Stax song within
the first few notes
...


ACT-D06

13

2

2

MATHEMATICS TEST
60 Minutes—60 Questions

DIRECTIONS: Solve each problem, choose the correct
answer, and then fill in the corresponding oval on your
answer document
...

Note: Unless otherwise stated, all of the following should
be assumed
...

Solve as many as you can; then return to the others in
the time you have left for this test
...

2
...

4
...
You
may use your calculator for any problems you choose,
___
1
...
What is the measure of
∠ACD ?
A

Illustrative figures are NOT necessarily drawn to scale
...

The word line indicates a straight line
...


DO YOUR FIGURING HERE
...

B
...

D
...


?
C

D

110°
120°
130°
140°
150°

2
...
−32
G
...
0−2
J
...
32
3
...

B
...

D
...


0,024
0,120
0,300
0,480
2,400

4
...
−7
G
...
3
J
...
15

ACT-D06

14

GO ON TO THE NEXT PAGE
...
In the trapezoid below, AB is parallel to DC
...


2

85°
A

45°

C
D

A
...

C
...

E
...
Gao earns his regular pay of $12  per hour for up to
40 hours of work per week
...
How much does Gao earn in a week in
which he works 56 hours?
F
...

H
...

K
...
On the first day of school, Ms
...
On
each day of school after that, she gave the students
3  new spelling words
...
60
B
...
66
D
...
72
8! _
8
...


000

G
...
001
J
...
420

ACT-D06

15

GO ON TO THE NEXT PAGE
...


9
...
What is sin,B ?
A
...

C
...

E
...
(6a3 − 5ac2 + 12c) − (4c − 3a3 − 2ac2 ) is equivalent to:
F
...

H
...

K
...
Which of the following (x,y) pairs is the solution for
the system of equations x + 2y = 2 and −x + y = 7 ?
A
...
(−1,1
...
( 1,0
...
( 0,1)
E
...
Tim’s flight was originally scheduled to depart at
4:51 p
...
, but it was delayed 563 minutes
...
01:12 a
...

G
...
m
...
02:14 a
...

J
...
m
...
10:54 p
...

13
...
At what points
does the circle intersect the x-axis?
A
...
(0−12,0) and (012,0)
C
...
(0−72,0) and (072,0)
E
...
Given that x2 − 5x − 36 factors into 2  binomial factors
with integer coefficients, which of the following
binomials is 1 of those factors?
F
...
x − 09
H
...
x + 06
K
...


2

DO YOUR FIGURING HERE
...
Two vectors are shown in the standard (x,y) coordinate
plane below
...
Which
one?
y
6

A
...


y
6

D
...


4

O

2

−2

O

−2

y
6

C
...
A square and a rectangle have the same area
...
What is the
length, in centimeters, of a side of the square?
F
...
028
H
...
400
K
...


2

DO YOUR FIGURING HERE
...
T-shirts are on sale for D dollars each, including tax
...
After she purchases the maximum number she
can, Q T-shirts, she has R dollars left
...
N = Q + R
B
...
N = QD + RD
D
...
N = QR + D

2

18
...
Out of a total of 50 customers, 20 ordered a
sandwich on white bread, 28 ordered a meat sandwich,
and 12  ordered a meat sandwich on white bread
...

Type of
bread

Meat

Vegetarian

Total

White
Wheat

12
?

?
?

20
?

Total

28

?

50

How many customers ordered a vegetarian sandwich
on wheat bread?
F
...
08
H
...
14
K
...
A team of biologists tagged and released 90 deer in a
forest
...
Let p be the proportion of deer in
this forest that are tagged
...
__

B
...

D
...


24
1_
__
18
_1_
6
_1_
5
_1_
3

20
...

G
...

J
...

ACT-D06

02√"7
06√"2
12√"2
14√"2
14
18

GO ON TO THE NEXT PAGE
...


21
...
x < − _4_

3
B
...
x < −4
D
...
x >

6

22
...
If it can be
determined, in which quadrant of the standard (x,y)
coordinate plane is the point (−a,b2 ) located?
y
quadrants
of the
standard (x,y)
coordinate
plane
F
...

H
...

K
...
The mass of a certain type of bacteria grows
exponentially, doubling every 20 minutes
...
0,070
B
...
0,320
D
...
4,000
24
...
Then 1 month will be randomly selected from
the 12 months in a year
...


1_
__
84

1_
G
...
__
19

J
...
__
84

ACT-D06

19

GO ON TO THE NEXT PAGE
...


25
...
The average weight of Juan, Jim, Malik,
and Harry is exactly 150 pounds
...
100
B
...
130
D
...
190

2

26
...
02
G
...
04
J
...
18
27
...
Consider
the sample space determined by rolling these number
cubes and adding the 2 integers on the faces that land
on top
...

B
...

D
...


05
10
11
12
34

28
...

5
π
H
...

2
5π
K
...


29
...

Day
Low
High
Monday
−3°
26°
Tuesday
−5°
32°
Wednesday
−7°
22°
Thursday
03°
40°
Friday
02°
40°
To the nearest degree, what was the mean of the
differences in daily high and low temperatures for
these 5 days?
A
...
29°
C
...
32°
E
...


2

DO YOUR FIGURING HERE
...
A family’s budgeted items are expressed as a fraction
of their weekly income in the chart below
...


5_
__
48

1_
G
...
__
24

J
...


_1_
8

31
...
1357 ?
A
...

C
...

E
...
You and a friend each have a can full of water
...
While
you are still pouring water, 3 seconds after you started,
your friend starts pouring the water from her can into
the same bucket at a constant rate of 2 ounces per
second
...
04
G
...
06
J
...
12

ACT-D06

21

GO ON TO THE NEXT PAGE
...


33
...
In each package, _1_ of the pieces
3

are brown and the remaining pieces have an even
distribution of the other 5 colors
...
__
15

2_
B
...


_1_
6

D
...


_2_
3

34
...

G
...

J
...


(−∞, 3]
(−∞, 4]
[3, 4]
[3, ∞)
[4, ∞)

35
...
The classroom is 7
...
0 meters
...
0 centimeters
...
07
...
10
...
10
...
15
...
16
...
In rhombus ABCD shown below, AC = 5 feet and
BD = 6 feet
...

G
...

J
...


ACT-D06

05
...
5
11
15
30

B

D

C
22

GO ON TO THE NEXT PAGE
...


37
...
The first
number is what percent of the third number?
A
...
5%
B
...
5%
C
...
87
...
95%

2

38
...
The floor plan
of a store at Center Street Mall is shown in the figure
below, with right angles as indicated and all distances
given in feet
...

G
...

J
...


39

45

$1,656
$1,872
$6,624
$7,380
$7,488

39
...
Neeson, a science teacher, told her students that
30
...
0%
will come from their test averages
...
0% of the test average
...
06
...
10
...
14
...
20
...
28
...
A rectangle with an area of 30 square inches has length
and width, in inches, that are both integers
...
22
G
...
34
J
...
62

ACT-D06

23

GO ON TO THE NEXT PAGE
...


Use the following information to answer
questions 41–43
...
Some
information about each condo is given below
...

41
...

B
...

D
...


2
...
01 × 103
2
...
10 × 104
2
...
The couple will consider the price per square foot of
each condo
...
One of the following comparisons is true
...
x is $03 greater than y
...
x is $06 less than y
...
x is $06 greater than y
...
x is $18 less than y
...
x is $18 greater than y
...
The annual property tax for Condo X is 2% of its
assessed value
...
$019,120
B
...
$186,200
D
...
$205,900

44
...
The midpoint of this segment corresponds to
which of the following complex numbers?
F
...
−4 + 5i
H
...
−2 + 2i
K
...


2

DO YOUR FIGURING HERE
...
In the standard (x,y) coordinate plane, the 3 lines with

2

equations y = _3_ x − 3, y = − _2_ x + 2, and x = 0 bound a
5
5
triangular region
...
)
y

x

O

A
...

C
...

E
...
5
05
...
5
12
...
5

___
46
...
Which of the following
quantities is NOT a rational number?
A

B
75

D
F
...

H
...

K
...
The volume of a solid object is equal to the volume of
water it displaces when completely submerged in
water
...
When the
object is completely submerged, the new depth of the
water in the tank is 15 cm
...
0,135
B
...
0,780
D
...
2,100

ACT-D06

25

GO ON TO THE NEXT PAGE
...


Use the following information to answer
questions 48–51
...
In coordinate units, the
radius of the smaller circle is 2, and the radius of the larger
circle is 4
...
The measure of ∠BOC is 45°
...
)
48
...


4_
0 ___

√"3
___
G
...
4
J
...
4√"3
49
...

1st: A dilation with center O and scale factor 2
2nd: A translation of 8 coordinate units to the
right
The 3rd circle has how many points in common with
the larger circle?
A
...
1
C
...
4
E
...
What is the area, in square coordinate units, of the
region that is outside the smaller circle and inside the
larger circle?
F
...
12π
H
...
48π
K
...


2

↔
51
...
y = −4x
B
...
y = 00x
D
...
y = 04x

DO YOUR FIGURING HERE
...
A sequence is given by s 1 = 4 and sn + 1 = 2sn − 3 for
n ≥ 1
...
05
G
...
11
J
...
35

53
...
Which of the following
values is closest to the distance, in miles, from
Deerborn to Fergus?
Deerborn

80
...
0

Fergus

(Note: cos,127° ≈ −0
...
8)
A
...
140
C
...
180
E
...
Which of the following expressions is equivalent to
1
1
_____
− _____
?
x−a
x+a

F
...
_____
2
2
x −a

2x __
H
...


1 __
_____
x 2 − a2

1_
K
...


2

DO YOUR FIGURING HERE
...
One of the following equations represents the ellipse
shown below in the standard (x,y) coordinate plane
...
_______ + _______ = 1

B
...

D
...


3
(x
+
2)2
_______
3
(x
+
2)2
_______
5
(x
−
2)2
_______
9
(x
+
2)2
_______
9

+
+
+
+

5
(y
−
3)2
_______
5
(y
−
3)2
_______
3
(y
+
3)2
_______
25
(y
3)2
___−
____
25

=1
=1
=1
=1

56
...
Which equation?
F
...

H
...

K
...
There are 100 fractions in the following set
...
What
is the product of these 100 fractions?
A
...


_1_
3
_1_
4
1
____
100
1_
___
301

C
...

E
...


2

DO YOUR FIGURING HERE
...
If 2 x = 7 and 2 y = 14, then x − y = ?
F
...
0−7
H
...
001
K
...
The table indicates the grade (10 or 11) and high
school (North or South) of the 270 students enrolled in
Algebra II in the Green City School District
...
Which of the following expressions gives the
probability that both chosen students will be from the
same grade and the same high school?
47(46)
93(92)
73(72)
57(56)
A
...
_1_ ___
+ ___
+ ___
+ ___

C
...


4 270
270
270
47(73)
93(57)
________
+ ________
270(269)
270(269)
47(93)
73(57)
________
+ ________
270(269)
270(269)

270

270(269)

2

1 2

E
...
A certain company has 120 employees, 85 of whom
have business degrees
...

There are 14 employees who are not CPAs and also do
not hold a business degree
...
What is the probability
that the selected employee will be a CPA ?
(Note: A business degree is NOT required to be a
CPA
...
___
120
89_
H
...
___
120
99_
K
...


END OF TEST 2
STOP! DO NOT TURN THE PAGE UNTIL TOLD TO DO SO
...

ACT-D06

29

3

3

READING TEST
35 Minutes—40 Questions
DIRECTIONS: There are several passages in this test
...

After reading a passage, choose the best answer to each
question and fill in the corresponding oval on your
answer document
...


Passage I
LITERARY NARRATIVE: This passage, which includes an
essay by Angie Cruz, is adapted from the unattributed article
“First Addresses, Seared in Memory” (©2006 by The New York
Times)
...


45

I woke up in the morning with the sunlight, and
from my kitchen window I often greeted my
grandmother, who lived across the courtyard,
her asking me, “Are you still studying up
there?”

50

That had been my explanation when she asked
me why didn’t I have a job with good benefits
...
“We are estudiando,” I said, when my relatives stood at my front door holding plastic
containers filled with dinner, and saw a group
of women crowded in the living room plotting
an event, discussing politics, sharing their
writing
...
Everywhere, in the bathroom too,
there were prints of Roman ruins freckled
brown with age
...
Even so, my spirits heightened
whenever I felt in my pocket the key to this
apartment; with all its gloom, it still was a
place of my own, the first, and my books were
there, and jars of pencils to sharpen, everything
I needed, so I felt, to become the writer I
wanted to be
...
But there is no question that the experience of one’s first place in the city is a transforming
rite of passage
...
It was a steal,
$600 a month for an L-shaped one-bedroom in
a prewar building at 615 West 164th Street
...


70

75

Because I wanted color and to hide the defects
on the walls, I painted the bedroom an oceanic
blue, the living room the color of a mango, the
bathroom a leaf green
...
The dumbwaiter had been turned into a
pantry
...
Then there were the
plumbing ghosts
...


Although my apartment was a snug 500 square
feet, filled with books, museum posters and my
very bad but honest figurative paintings, the
rooms seemed to swell in size when other
writers needed a place to stay
...
There was always a fresh
batch of iced tea in the fridge, an answering
machine to answer my calls, photographs on
my desk of all the people I love
...
My desk faced the courtyard, a
neglected garden overgrown with weeds
...


GO ON TO THE NEXT PAGE
...
The main idea of the ninth  paragraph (lines  62–72) is
that Cruz’s apartment was:
F
...

G
...

H
...

J
...


There were also moments when it was quiet,
when kids were at school, people were at work,
and the merengue-loving neighbors were
taking their afternoon siesta
...

But even more so, without all the family members, who showed up with leftovers and slipped
$20 in my hand when I looked tired from long
nights at freelance jobs teaching, editing and
even window-designing while “estudiando” for
my master’s degree, I wouldn’t have had the
confidence that I was right to continue to live
my life as a writer
...


5
...
analyze the relationship Cruz had with her grandmother
...
explain how world travel and music influenced
Cruz’s writing
...
depict the sights and sounds Cruz encountered
while at her desk
...
reveal Cruz’s frustration with the cluttered, noisy
apartment complex
...
Which of the following statements best captures Cruz’s
revelation as it is presented in lines 86–92?
F
...

G
...

H
...

J
...


1
...
similar; they were both disappointed in their old,
shabby apartments
...
similar; the apartments’ defects didn’t keep them
from appreciating their apartments
...
different; Capote was disappointed in his apartment’s shabbiness, whereas Cruz felt at home
despite her apartment’s defects
...
different; Capote felt at home despite his apartment’s defects, whereas Cruz was disappointed in
her apartment’s shabbiness
...
According to the passage, without her family members,
Cruz wouldn’t have:
A
...

B
...

C
...

D
...

8
...
there are fewer apartments in the city
...
it has become a transforming rite of passage
...
more people are moving to the city
...
apartments have become more expensive
...
Details in the passage indicate that, compared to
Cruz’s first apartment, Capote’s first apartment:
F
...

G
...

H
...

J
...


9
...
be near family
...
find an apartment
...
finish her second novel
...
study creative writing
...
The primary writing mode of Cruz’s essay is:
A
...

B
...

C
...

D
...


ACT-D06

10
...
lower than that of similar apartments
...
too high for a one-bedroom in a prewar building
...
more than she had expected to pay
...
less than she had paid in the past
...


3

3

Passage II

55

SOCIAL SCIENCE: This passage is adapted from the book
The Disappearing Spoon by Sam Kean (©2010 by Sam Kean)
...


5

10

15

20

25

30

35

40

45

50

60

A number of brilliant chemists devoted their
careers to aluminium throughout the 1800s, and it’s
hard to judge whether the element was better or worse
off afterward
...
(Alum is the powder cartoon characters like Sylvester the cat sometimes swallow that makes their mouths pucker
...


65

70

Twenty years later, a Frenchman figured out how
to scale up these methods for industry, making aluminium available commercially
...
It was still
more expensive than even gold
...
It’s always
bonded to something, usually oxygen
...
The French once displayed
Fort Knox–like aluminium bars next to their crown
jewels, and the minor emperor Napoleon III reserved a
prized set of aluminium cutlery for special guests at
banquets
...
) In the United States, government engineers, to
show off their country’s industrial prowess, capped the
Washington Monument with a six-pound pyramid of
aluminium in 1884
...


75

80

85

Hall’s fortune, however, was not made instantly
...
(Today Hall and
Héroult share credit for the discovery that crashed the
aluminium market
...
It turned into one of the most successful
business ventures in history
...
In its first months in 1888, Alcoa eked out
50 pounds of aluminium per day; two decades later, it
had to ship 88,000 pounds per day to meet the demand
...
Years
before Hall was born, one man’s breakthrough had
dropped aluminium from $550 per pound to $18 per
pound in seven years
...
And thanks to Hall, aluminium
became the utterly blasé metal we all know, the basis
for pop cans and pinging Little League bats and airplane bodies
...
) I suppose it depends
on your taste and temperament whether you think aluminium was better off as the world’s most precious or
most productive metal
...
The passage can best be described as an:
A
...

B
...

C
...

D
...


Aluminium’s sixty-year reign as the world’s most
precious substance was glorious, but soon an American
chemist ruined everything
...
It obsessed people, but
no one could figure out an efficient way to separate it
from oxygen
...
And at least
one of his students had the naïveté to take his professor
seriously
...
Based on the passage, the author would most likely
agree with which of the following statements?
F
...

G
...

H
...

J
...


In his later years, Professor Jewett bragged to old
college chums that “my greatest discovery was the discovery of a man”—Charles Hall
...
He failed and failed and
failed again, but failed a little more smartly each time
...
The
energy from the current zapped and liberated the pure

ACT-D06

metal, which collected in minute silver nuggets on the
bottom of the tank
...
This had been the most sought-after chemical
prize since the philosopher’s stone, and Hall had found
it
...


32

GO ON TO THE NEXT PAGE
...
In the context of the passage, what does the author
most nearly mean when he says that “an American
chemist ruined everything” (lines 33–34)?
A
...

B
...

C
...

D
...


17
...
illustrate how commonplace gold had become by
the 1880s
...
highlight the extravagant wealth of the French
royalty
...
emphasize just how highly esteemed aluminum
once was
...
suggest that the nineteenth-century fascination
with aluminum was felt primarily by the French
...
According to the passage, the Washington Monument
was capped with a pyramid of aluminum because:
F
...

G
...

H
...

J
...


14
...
Most students at Oberlin
G
...
Héroult
J
...
The main point of the fourth paragraph (lines 45–60) is
that:
A
...

B
...

C
...

D
...


19
...
strength
...
popularity
...
purity
...
cheapness
...
The passage indicates that Hall moved quickly to
found Alcoa because:
F
...

G
...

H
...

J
...


ACT-D06

20
...
the mistakes Hall made in his initial experiments
were later remedied by Héroult
...
Héroult’s discovery may have been more accidental than intentional
...
the problems Hall faced during his experiments
were not experienced by Héroult
...
Héroult was the first to discover an entirely new
process for obtaining aluminum
...


3

Passage III

Passage B by Larry Starr and
Christopher Waterman

HUMANITIES: Passage A is adapted from the article “Dylan’s
Electric Kiss-Off ” by Damien Cave et al
...
Passage B is adapted from American Popular
Music: The Rock Years by Larry Starr and Christopher
Waterman (©2006 by Oxford University Press)
...


5

10

15

20

25

30

35

40

45

55

The most notorious live performance in rock &
roll lasted about fifteen minutes: three songs played at
assaultive volume by a plugged-in blues band fronted
by the young poet-king of American folk music, at the
sacred annual congress of acoustic purists, the Newport
Folk Festival
...


60

65

Dylan paid for his daring
...
Butterfield guitarist Mike
Bloomfield said Dylan “looked real shook up
...
’ It was ‘More, more,
more
...
A month
before Newport, Dylan cut his first Top Five hit, “Like
a Rolling Stone,” in New York with a group that
included Kooper and Bloomfield
...


80

85

There is no apparent booing on the surviving
soundboard tape of the show
...
It has
been suggested that the audience was complaining
about the sound mix
...
(On the tape, Dylan is front, center and
bitingly clear
...
He was so rattled when he returned alone to sing
“It’s All Over Now Baby Blue” and “Mr
...
“Does anybody have an E harmonica—an E harmonica, anybody?” Dylan asked the crowd
...
” He got one
...
Urban
folk in the early 1960s was an increasingly topical,
political, socially conscious music
...
Thus the words were of paramount importance in urban folk music, and the acoustic
guitar accompaniments enabled the words to be heard
clearly
...
It was a relatively
simple matter to bring an acoustic guitar along to a
political meeting or demonstration, and to set it up and
play it there when and if the occasion presented itself,
which surely cannot be said of rock ’n’ roll band equipment
...

By the mid-1960s changes within rock ’n’ roll
were already in the wind, but Bob Dylan’s electric style
and other manifestations of folk rock had the effect of
an enormous injection of growth hormones into the pop
music scene
...
Pop records on serious
subjects, with political and poetical lyrics, sprang up
everywhere; before long, this impulse carried over into
the making of ambitious concept albums
...


Questions 21–23 ask about Passage A
...
In Passage A, the words “sacred” and “purists” (line 5)
most nearly serve to characterize the Newport Folk
Festival and its attendees as:
A
...

B
...

C
...

D
...


The folk scene never recovered, rock & roll was
never the same, and Dylan knew he was responsible
...


3

3

22
...
outline the development of Dylan’s style of guitarplaying
...
contribute to an account of Dylan’s rise to fame
...
emphasize that Dylan switched instruments
throughout his career
...
establish that fans were unaccustomed to Dylan
playing electric guitar
...
Which of the following statements provides the best
paraphrase of lines 77–81?
A
...

B
...

C
...

D
...


23
...
Tambourine Man” because:
A
...

B
...

C
...

D
...


Questions 28–30 ask about both passages
...
Which of the following statements best captures a
main difference in the focus of the two passages?
F
...

G
...

H
...

J
...


Questions 24–27 ask about Passage B
...
In the context of Passage B, the list between the dashes
in lines 58–61 can best be described as examples of
people and causes that:
F
...

G
...

H
...

J
...


29
...
Dylan’s conversion from folk musician to rock ’n’
roll musician temporarily stalled his career
...
Dylan’s rock ’n’ roll performance at the Newport
Folk Festival marked a pivotal moment in the evolution of rock ’n’ roll
...
The response to Dylan’s rock ’n’ roll performance
at the Newport Folk Festival left Dylan confused
about the course of his musical development
...
Changes within rock ’n’ roll motivated Dylan to
switch from playing folk music to playing rock ’n’
roll
...
In line 86, the phrase “this impulse” most specifically
refers to the:
A
...

B
...

C
...

D
...


26
...
unveiled
...
posed
...
imparted
...
depicted
...
Compared to Passage A, Passage B provides more
information about:
F
...

G
...

H
...

J
...


35

GO ON TO THE NEXT PAGE
...
Knudsen (©1981 by
Scientific American, Inc
...
A nocturnal hunter, the bird must be able to find field mice
solely by the rustling and squeaking sounds they make
as they traverse runways in snow or grass
...
Since the bird hunts from the air, it must also be
able to determine its angle of elevation above the
animal it is hunting
...


60

65

70

What accounts for this acuity? The answer lies in
the owl’s ability to utilize subtle differences between
the sound in its left ear and that in its right
...
The barn owl is particularly sensitive to
these minute differences, exploiting them to determine
the azimuth of the sound
...
For the barn owl the difference in loudness also helps to specify elevation because
of an unusual asymmetry in the owl’s ears
...
For this
reason the right ear is more sensitive to sounds from
above and the left ear to sounds from below
...
To be of service to the owl, however, the information must be organized and interpreted
...
From these centers nerve impulses
travel to a network of neurons in the midbrain that are
arranged in the form of a map of space
...
From this structure impulses are
relayed to the higher brain centers
...


The barn owl is capable of locating the source of a
sound within a range of one to two degrees in both
azimuth and elevation; one degree is about the width of
a little finger at arm’s length
...

The sensitivity of the barn owl’s hearing is shown
both by its capacity to locate distant sounds and by its
ability to orient its talons for the final strike
...
This behavior is not
accidental
...

This behavior clearly increases the probability of a successful strike; it also implies that the owl not only identifies the location of the sound source with extreme
accuracy but also detects subtle changes in the origin of
the sound from which it infers the direction of movement of the prey
...
The first paragraph most strongly suggests that a barn
owl must be able to locate sounds in the vertical
dimension mainly because it hunts:
A
...

B
...

C
...

D
...


The most visually striking anatomical feature of
the barn owl, and the one that plays the most important
role in its location of prey, is the face
...
The feathered structure,
called the facial ruff, forms a surface that is a very efficient reflector of high-frequency sounds
...
The troughs are similar in
shape to the fleshy exterior of the human ear, and they
serve the same purpose: to collect high-frequency
sounds from a large volume of space and funnel them
into the ear canals
...

The ear openings themselves are hidden under the
preaural flaps: two flaps of skin that project to the side
next to the eyes
...


32
...
fluctuation between high and low frequencies
...
location in the horizontal dimension
...
transformation into a map of space
...
loudness and intensity
...


3

3

33
...
imposing upon
...
improving
...
victimizing
...
making use of
...
The author directly states that which of the following
features of the barn owl is the most visually striking?
A
...
Its coloring
C
...
Its talons
38
...
wider than they are long
...
longer than they are wide
...
about as wide as they are long
...
variable in terms of their relative length and width
...
Which of the following behaviors of a barn owl does
the author provide as the strongest evidence of the
bird’s ability to detect subtle changes in the origin of a
sound?
F
...
Catching prey in complete darkness
H
...
Swooping down on stationary prey

39
...
shaped into two flaps that protect the owl’s ear
openings
...
arranged in several layers that allow sound to be
amplified
...
textured and dense enough to block unnecessary
sensory stimuli
...
fine enough to allow sound to pass through them
unfiltered
...
The passage indicates that each neuron in the network
of neurons in the barn owl’s midbrain is excited only
by sounds:
A
...

B
...

C
...

D
...


40
...
The barn owl is about as accurate as a human in
azimuth but is about three times more accurate in
elevation
...
The barn owl is about three times more accurate
than a human in both azimuth and elevation
...
The barn owl is about as accurate as a human in
both azimuth and elevation
...
The barn owl is about three times more accurate as
a human in azimuth but is about as accurate in
elevation
...
The author’s use of the word “deadly” (line 45) most
nearly serves to:
F
...

G
...

H
...

J
...


END OF TEST 3
STOP! DO NOT TURN THE PAGE UNTIL TOLD TO DO SO
...


ACT-D06

37

4

4

SCIENCE TEST
35 Minutes—40 Questions
DIRECTIONS: There are several passages in this test
...
After
reading a passage, choose the best answer to each
question and fill in the corresponding oval on your
answer document
...

You are NOT permitted to use a calculator on this test
...
In each trial of the experiments, Steps 1−3
were performed:

Experiment 1
In Trials 1−5, H2O2 solutions that differed in concentration (percent H 2O 2 by volume) were tested while the
catalase solution was maintained at a pH of 6
...


1
...
0 mm was immersed for 2 min in an aqueous catalase
solution maintained at a certain pH
...
The filter paper was removed from the solution
...


Table 1

3
...
The rising time, RT
(the time required for the filter paper to rise to the surface), was recorded
...
2
0
...
5
1
...
0

27
21
17
13
10

GO ON TO THE NEXT PAGE
...
Suppose that another trial had been performed in
Experiment 1 and that the RT for this trial had been
8 sec
...
0
...
0
...
1
...
2
...
The results are
shown in Table 2
...
2
0
...
5
1
...
0

50
39
31
24
18

11
12
13
14
15

7
7
7
7
7

0
...
3
0
...
0
2
...
2
0
...
5
1
...
0

22
17
14
10
08

RT
(sec)

4
...
Trial 2; the shorter RT corresponded to the faster
decomposition
...
Trial 2; the longer RT corresponded to the faster
decomposition
...
Trial 7; the shorter RT corresponded to the faster
decomposition
...
Trial 7; the longer RT corresponded to the faster
decomposition
...
Consider the gas bubbles that were responsible for
causing the filter paper to rise to the surface
...
H2O
B
...
O2
D
...
A
...
” ©2000 by the Division of Chemical Education, Inc
...


6
...
In Trial 5, the RT would most likely
have been closest to which of the following?
F
...
10 sec
H
...
16 sec

1
...
5
0
...
5
2
...
7
0
...
7
2
...
According to the results of Experiments 1 and 2, what
was the range of RT values for the trials done at a neutral pH ?
A
...
08 sec−22 sec
C
...
18 sec−50 sec

2
...
05
...
10
...
15
...
20
...


4

4

Passage II

7
...


The number of bacteria that adhere to a surface is
affected by the medium in which they are grown
...


8
...
coli attached to each chip was
counted, and the average number of cells/cm 2 of chip
was determined
...


Study 1
In each of 4 trials, Steps 1−8 were performed:

The results are shown in Table 1
...
Five 0
...


Table 1

2
...


Average number of E
...
A 15 mL sample of an E
...

4
...

5
...


Medium

1 hr

24 hr

48 hr

72 hr

10% soy broth
100% soy broth
Skim milk
20% meat juice

2,300
4,700
1,100
5,700

12,000
58,000
02,300
51,000

049,000
092,000
000,780
330,000

053,000
061,000
000,230
560,000

Study 2
Study 1 was repeated with S
...
coli (see Table 2)
...
The chips were placed in a solution of euchrysine (a dye
that stains DNA)
...
typhimurium cells/cm2
for an incubation time of:
Medium

1 hr

24 hr

48 hr

72 hr

10% soy broth
100% soy broth
Skim milk
20% meat juice

550,000
110,000
098,000
006,500

095,000
056,000
540,000
062,000

078,000
032,000
510,000
091,000

078,000
045,000
540,000
091,000

Tables adapted from Scott K
...
Zottola, “Adherence to Stainless Steel by Foodborne Microorganisms During Growth in
Model Food Systems
...
V
...


4

4

8
...
coli cells/cm 2 in
10% soy broth would most likely have been:
F
...

G
...

H
...

J
...


12
...
In
the studies, which step was most likely performed to
accomplish this task?
F
...
Step 5
H
...
Step 7

9
...
coli that will minimize, as much as possible, the
adherence of the E
...
Based on the results of
Study 1, which of the 4 media tested should the student
select?
A
...
100% soy broth
C
...
20% meat juice
10
...
To make it possible to see the cells that were
attached to each chip
G
...
To provide a source of nutrients for the cells
J
...
Which of the following statements about the effect of
either 10% soy broth or skim milk on the number of
S
...
typhimurium in:
A
...
typhimurium cells/cm 2 increases and then
remains constant
...
10% soy broth, the average number of
S
...

C
...
typhimurium
cells/cm2 increases only
...
skim milk, the average number of S
...


11
...
typhimurium cells/cm2 was greater than the average
number of E
...
10% soy broth and 100% soy broth only
B
...
100% soy broth and 20% meat juice only
D
...
In the studies, the macromolecule that was stained in
the cells was composed of what type of subunit?
F
...
Fatty acid
H
...
Nucleotide

ACT-D06

41

GO ON TO THE NEXT PAGE
...
One lysimeter collected a sample
of soil solution from a depth of 12 cm (shallow), and the
other collected a sample from a depth of 36 cm (deep)
...


The presence of earthworms in forest soil can affect
the amount of phosphorus (P) in the soil
...
Both forests had the same type of
soil
...


Key
shallow
deep

Forest

Plot

Earthworms

W

1
2

present
absent

Z

3
4

present
absent

SRP concentration (μg P/L)

Table 1

total soil P (mg P/cm3)

40
30
20
10
0

Plot 1 Plot 2
Forest W

Plot 3 Plot 4
Forest Z

Figures adapted from Esteban R
...
, “Effects of Exotic
Earthworms on Soil Phosphorus Cycling in Two Broadleaf Temperate Forests
...


15
...
To increase the soil mass
B
...
To remove most or all SRP
D
...
Which of the following statements gives the most
likely reason the lysimeters were installed 2 years
before the studies began? The 2-year period allowed
time for the:
F
...

G
...

H
...

J
...


2
Plot 1 Plot 2 Plot 3 Plot 4
Forest W
Forest Z
Figure 1

ACT-D06

50

Figure 2

Study 1
Three holes were dug in each plot
...
All the soil volumes collected from the holes in a
plot were combined into a single sample, and all particles
larger than 2 mm in diameter were removed
...


0

60

42

GO ON TO THE NEXT PAGE
...
Which of the following statements gives the most
likely reason that only the top 12 cm of soil was considered in Study 1 ?
A
...

B
...

C
...

D
...


20
...
_1_
2

F
...
2
J
...
Which 2 plots should be compared to determine the
effect of a forest’s age on total soil P in the absence of
earthworms?
F
...
Plots 1 and 3
H
...
Plots 3 and 4

21
...
For each
of the 2 depths, was the SRP concentration in the plot
with earthworms greater than or less than the SRP concentration in the plot without earthworms?
deep
shallow
A
...
greater
less
C
...
less
less

19
...
smaller than or equal to 2 mm in diameter
...
between 2 mm and 3 mm in diameter
...
exactly 3 mm in diameter
...
larger than 3 mm in diameter
...


4

4

Passage IV

22
...
decreased only for all 5 odorants
...
increased only for all 5 odorants
...
decreased only for 4 odorants but decreased and
then increased for 1 odorant
...
increased only for 4 odorants but increased and
then decreased for 1 odorant
...
The
change in the electrical activity of an antenna in the presence of an odorant can be detected as an increase in the
antenna’s voltage relative to its voltage in the absence of
odorants
...
sexta that were
exposed to each of 5 odorants at each of 4 concentrations
...
Based on the figure, if adult female M
...
less than 60 μV
...
between 60 μV and 120 μV
...
between 120 μV and 185 μV
...
greater than 185 μV
...
For which of the following combinations of odorant
and concentration was the average change in antennal
voltage closest to the average change in antennal voltage for 50 mg/L of nerolidol?
concentration
odorant
F
...
linalool
010 mg/L
H
...
methyl salicylate
100 mg/L
25
...
sexta exposed to an odorant concentration
of 1 mg/L, what is the order of the 5 odorants, from the
odorant that stimulated the least average change in
antennal voltage to the odorant that stimulated the
greatest average change in antennal voltage?
A
...
Caryophyllic acid, methyl salicylate, nerolidol,
linalool, propylacetone
C
...
Propylacetone, nerolidol, caryophyllic acid, methyl
salicylate, linalool

*microvolts; 1 μV = 1 × 10−6 V
Figure adapted from Kevin C
...
Carrell, and Esther
Mwilaria, “Detection Versus Perception: Physiological and Behavioral Analysis of Olfactory Sensitivity in the Moth (Manduca
sexta)
...


ACT-D06

44

GO ON TO THE NEXT PAGE
...
According to the passage, certain chemical compounds
can stimulate a change in the electrical activity of a
specific type of neuron in M
...
This type of
neuron is found in what organ of the human body?
F
...
Ears
H
...
Nose

ACT-D06

27
...
Central; the function of these neurons is to receive
and process information from other neurons
...
Central; the function of these neurons is to receive
stimuli from the environment and then pass this
information to other neurons
...
Peripheral; the function of these neurons is to
receive and process information from other neurons
...
Peripheral; the function of these neurons is to
receive stimuli from the environment and then pass
this information to other neurons
...


4

4

Passage V

A satellite’s orbital period is the time required for a
satellite to complete 1 revolution around its central body
...


The orbital energy of a satellite depends on the central
body (moon or planet) around which the satellite revolves,
the altitude of the satellite’s orbit, and the satellite’s mass
...

Table 1
Altitude
(km)*

Mass
(kg)†

Orbital
energy
(MJ)‡

01
02
03
04

Moon

0,400
1,400
2,400
3,400

100
100
100
100

0,168
0,204
0,223
0,235

05
06
07
08

Earth

1,400
1,400
1,400
1,400

050
150
200
250

1,846
5,537
7,383
9,229

Earth

0,400
1,400
2,400
3,400

100
100
100
100

3,313
3,692
3,984
4,217

09
10
11
12

Key
Moon
Mars
Earth
10
orbital period (hr)

Satellite

Central
body

6
4
2
0
400

*kilometers
†
kilograms
‡
megajoules

ACT-D06

8

1,400

2,400

3,400

altitude (km)
Figure 1

46

GO ON TO THE NEXT PAGE
...
Consider a satellite that completes 1 revolution around
Mars in exactly 5 hr
...
3,200 km
G
...
4,000 km
J
...
The diagram below (not drawn to scale) shows the
radius, R, of a central body; the center-to-center distance, d, between the central body and a satellite; and
the satellite’s altitude
...
Consider the hypothesis “For a given central body and
a given satellite mass, the greater the altitude of the
orbit, the greater the orbital energy
...
Satellites 1−4 only
B
...
Satellites 1−4 and Satellites 9−12 only
D
...
Satellite 2, because the altitude for Satellite 2 is
greater than the altitude for Satellite 10
...
Satellite 2, because R for the Moon is greater than
R for Earth
...
Satellite 10, because the altitude for Satellite 10 is
greater than the altitude for Satellite 2
...
Satellite 10, because R for Earth is greater than R
for the Moon
...
Consider 3 satellites: 1 orbiting the Moon, 1 orbiting
Earth, and 1 orbiting Mars
...
Based on Figure 1, the satellite orbiting which
central body most likely completes a revolution in the
least time?
F
...
Earth
H
...
Cannot be determined from the given information

33
...
What is the orbital energy of a 100 kg satellite in
orbit around Mars at an altitude of 400 km ?
B
...
Approximately how many revolutions does a satellite complete per hour while in orbit around Mars
at an altitude of 400 km ?
D
...
Consider the data for Satellites 5−8
...
Satellite 2
B
...
Satellite 9
D
...


4

4

Passage VI

34
...
H2O is an acid
...
H2O is a base
...
HCl is an acid
...
HCl is a base
...

Scientist 1
An acid is an uncharged substance that dissociates
(breaks apart into 2 or more ions) when dissolved in H2O,
producing 1 or more hydrogen ions (H + ) and a corresponding negative ion
...


35
...
accepts a pair of electrons, whereas according to
Scientist 3, an acid donates an H +
...
donates a pair of electrons, whereas according to
Scientist 3, an acid accepts an H +
...
accepts an H +, whereas according to Scientist 3, an
acid donates a pair of electrons
...
donates an H +, whereas according to Scientist 3,
an acid accepts a pair of electrons
...
An example of a base is sodium hydroxide (NaOH)
because, in H2O, it dissociates into a sodium ion (Na+ ) and
OH −
...
A base is an uncharged
or charged substance that accepts an H + from another substance (the acid) in a chemical reaction, forming a covalent
bond
...
Consider the statement “All bases contain hydroxide
ions
...
Scientist 1 only
G
...
Scientists 1 and 2 only
J
...
A covalent bond
forms between the donated H + and the H2O, producing a
hydronium ion (H3O+ ) and Cl−
...


37
...
” Which of Scientists  2
and 3, if either, would be likely to agree with this
statement?
A
...
Scientist 3 only
C
...
Neither Scientist 2 nor Scientist 3

Scientist 3
An acid is an uncharged or charged substance that
accepts a pair of electrons from a base (an uncharged or
charged substance that donates the pair of electrons) in a
chemical reaction
...
At the same time, an existing bond
within the acid is broken
...
The chemical formula of hypochlorous acid is HOCl
...
H − and ClO+
...
H + and ClO−
...
OH − and Cl+
...
OH + and Cl−
...
A covalent
bond forms between the H atom of HCl and the O atom of
H2O, and, at the same time, the bond between the H atom
and the Cl atom in HCl is broken
...
In this reaction, H2O is a base because it donates the
pair of electrons to the H atom of the HCl molecule
...


4

4

39
...
H, because it has less than 2 electrons
...
H, because it has more than 2 electrons
...
O, because it has less than 2 electrons
...
O, because it has more than 2 electrons
...
Consider Scientist 2’s model
...
What
substance is the conjugate base in the reaction
described by Scientist 2 ?
F
...
H3O+
H
...
Cl−

END OF TEST 4
STOP! DO NOT RETURN TO ANY OTHER TEST
...
Mark a “1” in the
blank for each question you answered correctly
...
Also enter the total number correct for each test
in the blanks provided
...


Test 1: English—Scoring Key
Reporting
Category*

Reporting
Category*

Key POW KLA CSE
1
...

3
...

5
...

7
...

9
...

11
...

13
...

15
...

17
...

19
...

21
...

23
...

25
...

27
...

29
...

31
...

33
...

35
...

37
...


B
H
B
J
C
F
B
J
A
H
D
J
C
J
B
G
C
G
C
J
C
J
A
F
D
J
D
H
C
F
A
G
D
F
B
G
D
F

___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___

Key POW KLA CSE
39
...

41
...

43
...

45
...

47
...

49
...

51
...

53
...

55
...

57
...

59
...

61
...

63
...

65
...

67
...

69
...

71
...

73
...

75
...

32
...

34
...

36
...

38
...

40
...

42
...

44
...

46
...

48
...

50
...

52
...

54
...

56
...

58
...

60
...

2
...

4
...

6
...

8
...

10
...

12
...

14
...

16
...

18
...

20
...

22
...

24
...

26
...

28
...

30
...


*Reporting Categories
PHM = Preparing for Higher Math
N = Number & Quantity
A = Algebra
F = Functions
G = Geometry
S = Statistics & Probability
IES = Integrating Essential Skills
MDL = Modeling

Number Correct (Raw Score) for:
Preparing for Higher Math (PHM)
(N + A + F + G + S)

_______
(35)

Integrating Essential Skills (IES)

_______
(25)

Total Number Correct for Mathematics Test
(PHM + IES)

_______
(60)

Modeling (MDL)
(Not included in total number correct for
mathematics test raw score)

_______
(22)

51

Test 3: Reading—Scoring Key
Reporting
Category*
Key KID
1
...

3
...

5
...

7
...

9
...

11
...

13
...

15
...

17
...

19
...


B
G
A
G
C
F
B
J
D
F
C
J
C
J
B
F
C
J
A
G

CS

Reporting
Category*

IKI

___
___

Key KID
21
...

23
...

25
...

27
...

29
...

31
...

33
...

35
...

37
...

39
...


___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___

C
J
C
F
D
G
C
J
B
G
A
G
D
H
B
J
C
G
D
F

CS

IKI

*Reporting Categories
KID = Key Ideas & Details
CS = Craft & Structure
IKI = Integration of Knowledge & Ideas

___
___
___
___
___
___
___
___
___
___
___
___

Number Correct (Raw Score) for:
Key Ideas & Details (KID)

_______
(23)

Craft & Structure (CS)

_______
(12)

___
___
___
___

Integration of Knowledge & Ideas (IKI) _______
(5)

___
___
___

Total Number Correct for Reading Test _______
(KID + CS + IKI)
(40)

___

Test 4: Science—Scoring Key
Reporting
Category*
Key IOD
1
...

3
...

5
...

7
...

9
...

11
...

13
...

15
...

17
...

19
...


D
H
D
F
C
F
A
H
C
F
B
J
B
J
D
G
C
H
A
F

SIN EMI

___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___
___

Reporting
Category*
Key IOD SIN
21
...

23
...

25
...

27
...

29
...

31
...

33
...

35
...

37
...

39
...


A
J
B
G
A
J
D
G
C
G
D
J
A
H
D
F
C
G
A
J

EMI

___
___
___
___
___
___
___
___

*Reporting Categories
IOD = Interpretation of Data
SIN = Scientific Investigation
EMI = Evaluation of Models,
Inferences & Experimental Results

___
___
___
___
___

Number Correct (Raw Score) for:
Interpretation of Data (IOD)
___
___
___
___
___
___
___

52

Scientific Investigation (SIN)
Evaluation of Models, Inferences &
Experimental Results (EMI)

_______
(18)
_______
(11)

_______
(11)
Total Number Correct for Science Test _______
(IOD + SIN + EMI)
(40)

Explanation of Procedures Used to Obtain
Scale Scores from Raw Scores
ACT Test D06

On each of the four tests on which you marked any
responses, the total number of correct responses yields a raw
score
...
For each test, locate and circle your raw score or the
range of raw scores that includes it in the table below
...
As you
determine your scale scores, enter them in the blanks provided
on the right
...
The lowest possible scale score for any test on which you
marked any responses is 1
...
To do this, add your four scale scores and divide
the sum by 4
...
(Round down any fraction less
than one-half; round up any fraction that is one-half or more
...
This is your Composite score
...
The lowest
possible Composite score is 1
...
If any test was completely
blank, do not calculate a Composite score

---