Science Decompistion

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

Hypothesis: I think that...... The Banana is going to rot the fastest

Materials:

1.   Bread
2.   Water
3.   Test Tubes
4.   Banana
5.   Cardboard
6.   Styrophone
7.   Test tube tack

Steps:

1.   Add the bread, styrophone, banana and cardboard into a test tube each.
2.   Add water to the test tube that had bread
3. Put little lids on them
4.   Put them all in the test tube rack
5.   Let it sit for about 3 weeks
6.   See what had happened to it

Image:

Findings:

TODAY	Colour	Change	Observations
Banana	Yellow	Little Brown	The banana started to go a little disgusting
Paper	Brown	Brown	The paper was just the same
Styrophone cup	White	White	It stayed the same
Bread	Cream	cream	The bread started getting hard

3 weeks	Colour	Change	Observations
Banana	Green	Mouldy	The banana had become completely mouldy
Paper	Brown	Brown	The paper stayed the same
Styrophone cup	White	white	The styrophone had mold around the edges
Bread	Green/Cream	mouldy	Was watery

5 weeks	Colour	Change	Observations
Banana	Green	Green	The banana has stated to become hairy
Paper	Brown	Brown	Its stayed the same
Styrophone cup	White	White	I has formed more mold in the tube
Bread	Cream	Bit of mold	Soggy

  

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.