Page 6 - 新思维科学活动用书9 样章
P. 6
1.1 Photosynthesis
1 What should Arun try to keep the same for all three sets of apparatus?
Tick (✓) three boxes.
the amount of light
the type of plant
the mass of the plant
the number of bubbles
the temperature
Arun leaves his three sets of apparatus for two days. Then he measures the volume of gas
collected in each test tube.
This is what he writes down.
A 18.3 cm 3
B 7.2 cm 3
C 0.5 cm 3
2 Complete Arun’s results table.
Apparatus Amount of light
A
B
C
3 What conclusion can Arun make from his results?
Tick (✓) one box.
Plants need chlorophyll for photosynthesis.
Plants that live in water photosynthesise more slowly than plants that live on land.
Plants photosynthesise faster when they have more light.
Plants use water for photosynthesis.
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