Hurumanu - Decomposing and Recycling

Hurumanu - Decomposing and Recycling


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

Hypothesis: I think that the first one that will be decomposed is banana, the second is bread, the third is styrofoam and the last one is paper

Materials:

1.   Banana
2.   Bread
3.   Styrofoam
4.   Paper 
5.   Test tube rack
6.   4 test rack
7.   Test tube locker

Steps:

1.  Get all the stuff you needed
2.  Put 4 pieces of banana on the test tube  
3.  Put the bread on the test tube
4.   Put the paper in the test tube
5.   Put the styrofoam on the test tube 
6.   Put all the test tube in the test tube rack
7.   Put water in the bread and the banana 
8.   Cover the test tube using a test tube locker 

Image:

Findings:

TODAY	Colour	Change	Observations
Banana	Yellow/White		Normal banana hasn't had any changes
Paper	Brown		Paper is brown doesn't have any changes at all
Styrophone cup\	White		Styrofoam is white and doesn't have any changes at all
Bread	white/brown		Same as a normal bread but have water added in it

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3 weeks	Colour	Change	Observations
Banana	yellow/white	green	The banana changes its colour to green and has moulds
Paper	brown	brown	Paper is still brown, doesn't have any changes
Styrophone cup	white	white	Styrophone is still white, doesn't have any changes.
Bread	white/brown	green/yellow	The bread changes its colour to green and has moulds

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5 weeks	Colour	Change	Observations
Banana	yellow/white	green	The banana turns its colour to green and had a lot of moulds all around it
Paper	brown	brown	Paper is still brown, doesn't have any changes
Styrophone cup	white	white	Styrophone is still white, doesn't have any changes.
Bread	white/brown	green	The bread changes its colour to green and has a lot of moulds

  

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