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In this physics activity, learners conduct two experiments to explore free-falling.

In this activity, learners model estuaries, artificially enriching both fresh and salt water samples with different amounts of nutrients and observing the growth of algae over several weeks.

In this activity, learners make a model of a pollution spill that occurred at Bangs Lake in Mississippi and measure water quality parameters in their model.

In this chemistry challenge, learners identify which plants have the enzyme "catalase" that breaks hydrogen peroxide into water and oxygen.

In this activity, learners will discover how the thin layers of amphibians' skin allow water and other chemicals to pass through it.

"Sublimation Bubbles" allows learners to explore how some solid materials, such as dry ice, can phase change directly from their solid to gaseous form.

In this activity, learners explore how various energy sources can be used to cause a turbine to rotate.

In this activity, learners are introduced to challenges of maintaining temperatures while living in space.