OCR GCSE Biology B · J257
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Rate of DecayA change in rate is measured in g/day; a percentage change has no units.
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GCSE Biology · key term
The difference between two rates of decay, showing how much faster or slower decay has become.
Used by OCR
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Rate of DecayA change in rate is measured in g/day; a percentage change has no units.
Give a rate-change answer in units such as g/day. If asked for a percentage change, divide the change in rate by the original rate and multiply by 100.
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