1. Describe an experiment you could do to find out the effect of pH on the growth of yeast? (6 marks)
2. Limpets are animals that live on rocks found by the sea. They are attached to the rocks and do not move very much. A picture of a limpet attached to a rock is shown below.
Design an investigation to find out if distance from the sea affects the population size of limpets found on the rocks. (6 marks)
3. Describe an investigation you could do to find out the effect of carbon dioxide concentration on the movement of insect larvae. (6 marks)
4. Describe an investigation you could carry out to find the effect of different air temperatures on the rate of sweating in humans.
Include full experimental details in your account. (6 marks)
5. A farmer wanted to compare the effect of two different types of fish food on the growth of his fish. Plan an investigation, making sure it is a fair test, that would give him reliable results. (5 marks)
2. Limpets are animals that live on rocks found by the sea. They are attached to the rocks and do not move very much. A picture of a limpet attached to a rock is shown below.
Design an investigation to find out if distance from the sea affects the population size of limpets found on the rocks. (6 marks)
3. Describe an investigation you could do to find out the effect of carbon dioxide concentration on the movement of insect larvae. (6 marks)
4. Describe an investigation you could carry out to find the effect of different air temperatures on the rate of sweating in humans.
Include full experimental details in your account. (6 marks)
5. A farmer wanted to compare the effect of two different types of fish food on the growth of his fish. Plan an investigation, making sure it is a fair test, that would give him reliable results. (5 marks)