at the end of this unit
most children will:
identify the components of a healthy and varied diet and describe how an idea about the effect of diet on health was tested; recognise some harmful effects of drugs; recognise that during exercise the heart beats faster to take blood more rapidly to the muscles; make careful measurements of pulse rate, represent these in suitable graphs and explain what the graphs show
some children will not have made so much progress and will:
identify some foods needed for a healthy and varied diet and some harmful effects of drugs; recognise that pulse rate is a measure of how fast the heart is beating and make measurements of pulse rate
some children will have progressed further and will also:
explain some early evidence for the effect of diet on health; explain why repeated measurements of pulse rate should be made and why it is important to test the effects of exercise on the pulse rate of several people
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