Fab Lab News

Bottle Biospheres & Photosynthesis
Posted 10/26/2017 05:00PM

Bottle Biospheres & Photosynthesis


Biosphere Bottle ProjectUsing donated soda bottles, 5th grade students built a closed ecosystem to help them understand why an ecological balance is needed in order for all organisms to survive and reproduce. The top layer included grass, grass seeds, rollie pollies, debris (bark and dead leaves) soil, and gravel. The bottom layer included 2 to 3 fish, gravel, and aquatic plant life. Twenty of the 24 ecosystems are still thriving after three weeks.


5th grade has also been learning about the stomata of plants, the tiny opening or pore that is used for gas exchange found on the under-surface of plant leaves and how this gas is involved in photosynthesis. Students created slides from their living plants and using a microscope to observe several stoma.

Silver Oak Elementary School

  • 5000 Farnsworth Drive
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  • San Jose, CA 95138
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  • Phone: 408-223-4515
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  • Fax: 408-223-4540
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