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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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