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

In this activity, learners explore the concept of valve operation and how engineers have adapted valves for use in mechanical heart valve design.

In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.

In this field study, learners discover how to collect data in the field and how their efforts can help certain animals, specifically, amphibians.