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This is an activity (located on page 131 of the PDF) related to sleep and circadian rhythms as well as space travel.

This modeling activity allows learners to discover for themselves what Mendel uncovered in his famous pea experiments.

The purpose of this plant biotechnology activity is to demonstrate the effect of changes in the environment on the growth and fertility of landscape grasses and crop grasses such as wheat and rice.

This series of chemistry stations is designed to accompany the PBS documentary about African-American chemist "Percy Julian: Forgotten Genius." Each of the six stations features either a chemical or p

In this space science activity, learners explore transits and the conditions when a transit may be seen.

Learners play the role of materials engineers as they test the flexibility of different materials.

In this activity, learners dissect a piece of pizza to learn about nutrients important for health.

In this activity, learners will explore how a hydrometer works by building a working model and conducting experiments.