Required Practical: Decay (AQA GCSE Biology)

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RP10: Decay in Milk

  • Aim: To investigate the effect of temperature on the rate of decay of fresh milk by measuring pH change
  • You will:
    • Decide on the range of temperatures that you wish to investigate milk decay over, considering the lesson time you have
    • Use an indicator to monitor the rate of decay of milk

RP Decay in Milk_ Method (1), downloadable IGCSE & GCSE Biology revision notes

RP Decay in Milk_ Method (2), downloadable IGCSE & GCSE Biology revision notes

How to investigate the effect of temperature on the rate of decay of fresh milk by measuring pH change

Decay in milk: analysis

  • You will:
    • Calculate the rate of decay of fresh milk incubated at three different temperatures
    • Draw a graph of the results

 

RP Decay in Milk_ Analysis (1), downloadable IGCSE & GCSE Biology revision notes

RP Decay in Milk_ Analysis (2), downloadable IGCSE & GCSE Biology revision notes

RP Decay in Milk_ Analysis (3), downloadable IGCSE & GCSE Biology revision notes

How to calculate rate of decay

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Lára

Author: Lára

Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.