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Welcome to the Sustainability Lesson Clearinghouse

Here, you can find free sustainability lessons to use in your class and upload your own lessons to share. Be sure to rate the lessons you use and leave comments for your colleagues!

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Sustainability Lesson Clearinghouse

Crowding in an Ecosystem

Lesson Description:
In this lesson, students plant radish seeds in two environments differing in seed density. They then observe the growth rate of the plants and the effects of crowding. This lesson is best suited for 6th-8th graders and adheres to National Life Science Standards (Content Standard C).
Lesson Type:
  • Project

Sustainability Topic:
  • Gardening

GEF Program Category:
  • Green Thumb Challenge

Time Needed:
2 weeks
Standards Addressed:
  • National Life Science Standards (Content Standard C)

Materials Needed:
  • 2 small milk cartons
  • 1 nail
  • garden soil
  • water
  • radish seeds
  • metric ruler
  • marker
  • pie pan

School or Group:
Hotchalk Lesson Plans
Contact Email:
service@greeneducationfoundation.org

The Sustainability Lesson Clearinghouse is brought to you in partnership with

Center for Green Schools