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Title: ANIMAL OR PLANT CELLS? A SCIENTIFIC INVESTIGATION
Description: A scientific experiment for 7th-9th graders. The experiment was about investigating someone's murder and we had to find out if the tissue was plant tissue or human tissue. It includes pictures, conclusion, hypothesis, problem, experiment description, data analysis.

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Animal or Vegetal Cells? 
{name here} 
{date} 
 
 
 
 
 

Experiment Description 
First,  we  get  the  vegetable  burger  sample  from  the  husband’s  house
...
  We  then  examine  the  samples  to  see  what  kind  of  cell  it  contains
...
 

Data Analysis 
Even  though  both,  potato  and  onion  are  plants  their  tissue  cells  are  very  different  from 
each  other
...
 Meanwhile, the potato cells were 
smaller and variable in size and are shaped like an oval/rectangular
...
  We 
could  not  see  clearly  any  shaped  cells  in  the  cheek  tissue
...
  We  could  clearly 
observe the cells are separated by the extracellular matrix
...
 
Meanwhile,  with  the  methylene  blue  we  could  see  even  more  clearly  the  different  shapes  and 
sizes of the cells from the tissue samples
...
 
The  type  of  tissue  that  was  used  as  evidence  for  the  case  turned  out  to  be  a  plant  tissue
...
  The  cells  that  were  analyzed 
looked  exactly  like  the  sample  of  potato  tissue  we  observed
...
 

Court Report 
Different  types  of  tissues  were  used  to  compare  the  evidence  tissue  that  was  recovered  by  the 
Crime  Scene  Technicians  in  the  suspect’s  home  refrigerator
...
  They  compared   each  tissue  to  each  other 
and  to  the  evidence
...
  The   cells  that  were  found  on  the  tissue’s  evidence  looked 
exactly  as  the  potato  tissue   cells  that  were  analyzed
...
  Therefore,   the  analysis  made  concludes 
that the suspect is innocent
...
 

Onion: 
a) 25 mL of 1:10 dilution of IKL solution
...
 
 
 
 
 
 
 
 

Potato: 
a) Original evidence with no chemicals added
...
 
 
 
 
 
 
 
 
 
 

c) 25 mL of 1:10 dilution of IKL solution and 25 mL of 1:20 dilution of 1% 
methylene blue
...
 
 ​
a

 
b) 25mL of1:10 dilution of IKL solution
...
 

 
 
 
 
 
 
 
 
 
 

One of the scientists’ DNA (Cristian) 
a) The original DNA with no chemicals added
...
 
 
 
 
 
 
 
 
 
 
 
b) 25 mL of 1:10 dilution of IKL solution and 25 mL of 1:20 dilution of 1% 
methylene blue
...
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

c) 25 mL of 1:10 dilution of IKL solution and 25 mL of 1:20 dilution of 1% 
methylene blue
...
 We learned how to watch 
evidence  under  a  microscope  and  what  chemicals  to  put  in  it
...
  We  saw 
potato,  onion  and  meat  so  we   could  compare  the difference between animal and vegetal cells
...
  


Title: ANIMAL OR PLANT CELLS? A SCIENTIFIC INVESTIGATION
Description: A scientific experiment for 7th-9th graders. The experiment was about investigating someone's murder and we had to find out if the tissue was plant tissue or human tissue. It includes pictures, conclusion, hypothesis, problem, experiment description, data analysis.