Hurumanu - Decomposing and Recycling

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

Hypothesis: I think that either the banana or the bread with water is going to rot the fastest.

Materials:

1. Bread  
2. Water  
3. Paper 
4. Banana  
5. Styrophone  
6. 4 Test tubes  
7. Test tube rack  

Steps:

1. Collect materials from the teacher.  
2. Sort out the materials in the correct order. 
3. Add in each of the 4 equipment in each separate 4 tubes. 
4.  Get a sticky note from the teacher and write your names on it.

Findings:

3 weeks	Colour	Change	Observations
Banana	Green	Rot	It turned into green rot
Paper	Brown	Nothing changed	Nothing changed, it still looks the same
Styrophone cup	White	Nothing changed	Nothing changed, it still looks the same
Bread	Light Brown	Mushy	It melted and turned Mushy/Watery

5 weeks	Colour	Change	Observations
Banana	Green	Rot	It is still green rot
Paper	Brown	Nothing changed	Nothing changed, it still looks the same
Styrophone cup	White	Nothing changed	Nothing changed, it still looks the same
Bread	Light brown	Mushy	It melted and turned Mushy/Watery

  

Conclusion:

Last term in week 10 in science, we have been focusing on decomposing and recycling. We had to get into groups of three and I was with Janel and Keyana. We had to write our hypothesis on which item is going to rot first and then set up our materials and follow the steps that Mr Palmer told us to follow. After that we had to leave the materials set for 3 weeks and then write down our findings on what happened and what had changed.