Page 18 - 新思维科学学生用书6 样章

1.1 The circulatory system

Think like a scientist 2

How does exercise affect pulse rate?

Plan a fair test investigation to find out how doing exercise affects your pulse rate.

1 a Make a prediction to answer the question you are going
to investigate. Say why you made this prediction.

b How will you test your prediction?

2 Identify the variables in your investigation that you will:
• measure

• change
• keep the same.

3 Identify the equipment you will need.

4 Decide how you will record and present your results.
5 Carry out your investigation and present your results.

Questions

1 Was your prediction correct?
2 Describe any pattern you see in the results.

3 What conclusion could you make from your results?
4 Which two types of scientific enquiry did you use in the investigation?

Explain your answer.

How are we doing?

As a group, choose one of the faces as your answer to each or or

of the questions.
• Could we make a prediction with reasons?

• Could we identify the different variables in the investigation?

• Could we choose suitable materials and equipment to use?
• Could we say how to record and present our results?

• Did we work together to plan and carry out the investigation?

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