explain why the roots of a plant grow in all directions if there is no gravity.
• Describe how this problem has been solved in the Space Station.
Explain why a sandy soil would not be a good choice for growing plants in the
Space Station. (Use what you know about soils, and also the information on
age 13, to help you write your answer.)
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One of the key parameters that every plant must respond to is the direction of gravity: stems go up (opposite to the pull of gravity) and roots go down (in the same direction as the force of gravity). In this project, you will construct simple devices that hold several germinating seeds, which allow you to watch how growing rootlets respond as you rotate the devices, effectively altering the direction of gravity.
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