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B3f Controlling Plant Growth

1. Whatever way a seed is planted in the soil, the roots always grow downwards.
This is because:
a. The root anchors the plant
b. To get water and minerals from the soil
The roots grow downward in response to gravity. We call this positive

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Describe how she should do her experiment.
In your answer, include
· how to set up the equipment
· what to look for
· how to make it a fair test.
idea that have light from one side only (1)
idea of observations (of orientation) before and after (1)


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