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Tuesday 29 October 2019

Decomposing and recycling

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


Image result for test tube rack



Hypothesis: I think that......

Materials:

  1.   Bread 
  2.   Banana
  3.   Cardboard
  4.   Styrofoam
  5.   Test tubes
  6.   Test tube holder
  7.     Water
Steps:
  1.   
  2.   

  3.   
  4.   
  5.   
  6.  
Image:






Findings:



TODAY
Colour
Change
Observations
Banana



Paper



Styrophone cup



Bread




  •   
  •   
  •   


3 weeks
Colour
Change
Observations
Banana
Black, White/yellowmushy, liquid on bottom stale on topIts normal banana colour on bottom of tube, on top its black and stale looking whilst on the bottom its liquid.
Styrophone cup
WhiteNoneHasn't changed in the slightest.
Cardboard
BrownNoneNo difference.
Bread
Green/yellowLiquid yellow on the bottom and green on top.Mouldy.



Images:




Conclusion:

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