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In this activity, learners explore how engineers design devices that can detect the presence of pollutants in the air.

In this outdoor activity, learners investigate the relationship between the slope of a trail and soil erosion.

In this outdoor activity, learners work in pairs using their senses—especially touch—to learn more about individual trees.

Learners work in teams to design and build solar water heating devices that mimic those used in residences to capture energy in the form of solar radiation and convert it to thermal energy.

In this outdoor activity, learners plan a simple foot path and create an environmental impact study of the natural area where the path would be.

In this activity, learners will take a step back and learn the history of the land they live on, and the people who used to live on it.

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

This is a comprehensive lesson plan on page 85 for a group cleanup trip to a local beach, lake or stream. Learners keep track of the types and amounts of trash picked up and analyze this information.

In this activity, learners work in groups to design a parachute out of household items that keeps an egg secure when dropped from a certain height.