Download Role play activity with the Nitrogen Cycle

April 11, 2018 | Author: Anonymous | Category: , Science, Earth Science, Soil Science
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Download Download Role play activity with the Nitrogen Cycle...

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Playing Nitrogen Cycle Roles The nitrogen cycle occurs as nitrogen moves from air, to the soil, into living things, and then back into the air again. As gaseous nitrogen moves into the soil, bacteria fix the nitrogen into compounds that living things can use. INQUIRY FOCUS Make Models

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1. Your class task is to role-play the organisms and materials shown in the figure of the nitrogen cycle in your textbook.

blue index cards white index cards tape

2. Each member of the class will have one of the following roles to play: air, clover, sheep, nitrogen-fixing bacteria in nodules on the clover’s roots, decomposers in the soil, and bacteria in the soil. 3. The white index cards represent free nitrogen. The students playing the role of air should each begin with one white card. The students playing the role of nodule bacteria should each begin with one blue card. 4. To begin the cycle, the air students should give their free nitrogen (white cards) to the nodule bacteria students, who should attach, or “fix” each white card to one of their blue cards with tape. This combination of white and blue cards represents a nitrogen compound. 5. Work as a group to move the nitrogen compounds through the cycle. Be sure that each person plays their role in moving the free nitrogen or nitrogen compounds through the cycle correctly. Use the figure in your student edition to help you.

Think It Over When is one cycle completed?

What type of nitrogen was present in living things—free or fixed? Why?

CYCLES OF MATTER

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