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In this activity, learners investigate the food, water, and space needs of common livestock animals.

This is a quick activity (on page 2 of the PDF under Stained Glass Activity) about the "Tyndall effect," the scattering of visible light when it hits very small dispersed particles.

This lesson focuses on how materials behave differently as their surface area increases.

In this activity with several mini experiments, learners explore the chemistry that helps scientists learn about the environment and how they can help save it.

In this activity, learners explore how environmental engineers might approach solving the problem of an oil spill.

In this activity (on page 5 of PDF), learners use dry ice and household materials to make scientifically accurate models of comets.

In this 7-10 day investigation, learners develop an understanding of waves and tides and their motion through discussion, demonstration, and hands-on activities.

Learners build a filter from old soda bottles and dirt. They create polluted water, and pour it through their filter to clean it.

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

In this activity, learners are invited to imagine the park of their dreams!

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