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A student was investigating the effect of sweating - Edexcel - GCSE Biology - Question 10 - 2019 - Paper 1
Question 10
A student was investigating the effect of sweating. The student set up two conical flasks each with a thermometer as shown in Figure 18. Flask 1 was covered in wet ... show full transcript
Worked Solution & Example Answer:A student was investigating the effect of sweating - Edexcel - GCSE Biology - Question 10 - 2019 - Paper 1
Step 1
State two variables that would need to be controlled in this investigation.
Answer
- The volume of hot water added to each flask must be the same to ensure a consistent starting temperature.
- The initial temperature of the water in each flask should be the same before starting the experiment to avoid affecting the results.