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In this plant science activity, learners conduct four experiments to observe how plants respond to sunlight and gravity.

Learners build models to learn about the special cells and structures that plants use to move water from their roots up through the stems and leaves.

In this activity, learners create a biosphere in a baggie.

In this activity, learners make a miniature greenhouse or "terrarium" to explore the greenhouse effect.

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

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