Hurumanu - Decomposing and Recycling

Hurumanu - Decomposing and Recycling

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

Hypothesis: I think that the banana and the bread well rot faster.

Materials:

1.  Test tube  
2.  Test tube holder  
3.   Banana
4.   Paper
5.   Bread 
6.   Styrofoam
7.    Water

Steps:

1.  Put test tubes in the rack 
2.   Take stale bread and put into the test tube 
3. Take cut up banana/s into the tube
4.   Cut up strips of Styrofoam and put one in tube
5.   Take cardboard strip an place in the tube 
6.   fill the tubes with water 
7.  wait and see results 

Image:

Findings:

• TODAY	Colour	Change	Observations
  Banana	yellow-brown	slimy	-slimy
  Paper	dark brown	soaked	-
  Styrophone cup	white	none	-
  Bread	white	moist	went down turning into a squiggly fold smush

  
  
  •   banana is yellowish-brown slimy 
  •   paper is dark brown soaked 
  •   cup colour is the same and no change
  • bread is white moist went down turning into a squiggly fold smush

3 weeks	Colour	Change	Observations
Banana	brown and yellow	slimy	banana is yellowish-brown slimy
Paper	dark brown	No change	paper is dark brown soaked no change
Styrophone cup	white	No change	cup colour is the same and no change
Bread	green, white and brown	mouldy and rotten	bread is green and rotten

•   banana is yellowish-brown slimy 
•   paper is dark brown soaked no change
•   cup colour is the same and no change
• bread is green and rotten 

5 weeks	Colour	Change	Observations
Banana	brown and yellow	slimy	banana is yellowish-brown slimy
Paper	back brown	nothing	paper is dark brown soaked no change
Styrophone cup	white	nothing	cup colour is the same and no change
Bread	green, white and brown	mouldy and rotten	bread is green and rotten

  

• banana is yellowish-brown slimy 
•   paper is dark brown soaked no change
•   cup colour is the same and no change
• bread is green and rotten    

Images:

Conclusion:
This experiment was very disgusting. I didn't like it at all. The was a complete difference in 3 weeks. But this did turn out how it was supposed to and my guess was correct that the banana was going to rot the fastest There is also a very  big difference from 3 weeks to 5 weeks.