Hurumanu How long it takes things to rot!

Title: Decomposition

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

Hypothesis: I think that bread will decompose the quickest because if you leave it there for too long of a time it will go stale then bad.

Materials:

1.  test tubes x4
2.  test tube rack x1
3. banana x1
4. bread x1
5. paper x1
6.  white styrophone x1
7. water
8. test tube bung.

Steps:

1. Collect the test tube rack.
2. Collect the test tubes.
3. Add the bread, paper, banana, and white styrophone all into there separate test tubes.
4. Add water to the test tube with bread in it.
5. put the test tube bungs on all the test tubes.

Findings: 

TODAY	Colour	Change	Observations
Banana	yellow	0	it looks like a banana
Paper	brown	0	it looks like paper
Styrophone cup	white	0	It looks like styrophone.
Bread	white	0	looks like bread

•   
•   
•   
• 
  

3 weeks	Colour	Change	Observations
Banana	Yellow	White	the mold around it made the banana change colour into a white colour.
Paper	Brown	Brown	It has not changed for 3 weeks ago.
Styrophone cup	White	White	It has not changed for 3 weeks ago.
Bread	white	Brown	It got moldy and changed colour because of the mold it turned brown.

•   
•   
•   
• 
  

5 weeks	Colour	Change	Observations
Banana	Yellow
Paper	Brown
Styrophone cup	White
Bread	White

  

•    
•    
•     
•    

Images:

Conclusion: