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What Makes
Plants Grow Upward? Light or Gravity? |
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Introduction:
As we study plants we notice
that plants seem to "know" which way to grow. Germinating
seedlings emerge above the soil and grow upward. On a window sill,
plants turn toward the light. These observations
lead to
questions such as:
Why do plants grow
upwards? Why do plants grow towards
light? Is the growing direction of a plant a
response to light or gravity?
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Material and
instructions
Design and perform experiments to test the effects of light
and gravity on the direction of plant growth. |
Details of
this project
More details of this project are available in the members section of ScienceProject.com
web site. Since research on this subject has a long history, you might
also be able to find good books about it in your local library or find
some information on the internet. |
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