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Lab
Decomposition
Guided
Weigh and bury
Leave to decompose
Recover and dry
Final masses
Interpret your results
Laboratory
bags, labelled
0.14 g
TARE
garden soil
heated soil
leaf
paper
cloth
polythene
leaves*
TARE
Current operation
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Operate the visible apparatus. Spread two fingers to zoom in; pinch them together to zoom out.
How the bench works
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Try it myself
Lab tools
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Your observations
Sample
Count
1
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2
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3
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Each step you finish on the Bench fills a row.
Your notes
Your observations