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In this activity, learners turn empty 2-liter bottles into a see-through compost container.

In this laboratory experiment, learners explore how effectively different sunscreens protect yeast cells from damage caused by ultraviolet (UV) radiation.

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

In this activity, learners evaluate the potential performance of air rockets placed inside a wind tunnel.

This lesson challenges groups of learners to design and construct a wind generator with the most electrical output.

In this outdoor activity, learners make their own organic-rich soil. Depending on where this activity is done, learners will probably discover that their local soil is low in organic matter.