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This lesson introduces learners to the world of nematodes (roundworms).

In this two-part activity, learners compare and contrast a variety of life cycles to better understand different organisms and how they develop.

In this activity (located at the bottom of the page), learners investigate soil and explore the creatures that live in it.

Using zebra mussels (Dreissena polymorpha), elodea and an indicator dye, learners study the role of light in photosynthesis.

In this activity about daily rhythms (on page 17 of the PDF), learners will explore circadian patterns in humans, animals and plants.

This detailed lesson plan for a field trip to Canyonlands National Park in Utah (page 32 of pdf) teaches students about the habitat of bighorn sheep.

In this activity related to plant biotechnology, learners transform a strain of E. coli using green fluorescent protein from a bioluminescent jellies.