High School Life Science
Light, Irradiance and Growth Rate
More light, faster growth. Up to a point.
Students grow algae at different distances from a light and measure growth rate. They plot growth against light and find where it stops rising.
How the lab meets it
What students do that satisfies the standard
NGSS HS-LS1-5
Standard: Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.
What the kit does: Students link measured growth and photosynthesis to the light energy the algae receive.
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Our Lesson Plans
Light, Irradiance and Growth Rate
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Growth Rate vs Irradiance
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Photosynthesis vs Irradiance
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Kits for these lessons
Algae Beads: Make Your Own FULL KIT