Glencoe Earth Science

Unit 6: You and the Environment

Legumes Fix Nitrogen

Project Type: Technology
Research how legumes “fix” nitrogen and why crop rotation keeps farm land more productive.

Design a flow chart about nitrogen fixation to include:

  • Nitrogen fixing legumes and their bacteria
  • Atmospheric nitrogen
  • Fixed nitrogen

Write 1-2 page(s) on why crop rotation keeps farm land more productive

The following are site to help understand the nitrogen cycle and research crop rotation. Students may use these and or any other site they find.

Nitrogen Cycle

Nitrogen Fixation

Type in “nitrogen cycle” or “crop rotation”

Crop Rotation

Crop Rotations for Increased Productivity

Type in “crop rotation”

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