Page 5 - 新思维科学活动用书9 样章

1 Photosynthesis and

the carbon cycle

1.1 Photosynthesis

Exercise 1.1A How light level affects photosynthesis

Focus

In this exercise, you will decide which variables to keep the same in an experiment. You will put
results into a table and make a conclusion.

Arun does an experiment to investigate whether plants photosynthesise faster when they have more

light.
The diagram shows the apparatus he uses.

Apparatus A Apparatus B Apparatus C

Arun puts Apparatus A next to a window.

He puts Apparatus B in a shady corner of the same room.

He puts Apparatus C in a dark cupboard.

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