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Topics  > Biology > Botany

Earthworms and plant growthFeatured science projectScience project video

Observation

It is observed that the tomato, green bean and radish plants grown in soil containing earthworms grew taller than the plants that grew in soil without earthworms.
 

Condition Average height of plant after 8 days (mm)
  Tomato Green bean Radish
Without earthworms 128 146 67
With earthworms 139 158 79

se the below graph to plot the results of  the science fair project.
 

Earth Worms Science Fair Project

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Complexity level:
6
Project cost ($):
20
Time required:
1 day to prepare, 8 days for observation
Material availability:
Look for earthworms in your garden. The seeds may be obtained from a nursery.
Safety concerns:

None