Science - Decompistion

Aim: To learn about the rate that different materials decompose. 

Hypothesis: I think that......the breed and banana is going to rotten down the fastest

Materials:

1.   test tube rack
2.   4 test tubes 
3.   bread 
4.   banana 
5.   card bored  
6. Styrofoam  
7.   water

Steps:

1. Need a group 
2. Get test tube and test tube rack
3.  You need to get banana,bread,cardboard,Styrofoam.
4.   
5.   
6.  

Findings:

TODAY	Colour	Change	Observations
Banana	yellowy and little brown		slimy
Paper	brown		flat
Styrophone cup	white		normal
Bread	breed colour		bumpy

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5 weeks	Colour	Change	Observations
Banana	green	moldy	the mold look kind of fluffy
Paper	brown	nothing	the paper has started to change colour at the bottom
Styrophone cup	white	nothing	starting to change colour at the bottom
Bread	still breed colour	a bit molly	it is starting to bend

  

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