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Coverslip Traps
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In this activity, learners use coverslips to collect organisms from a pond, estuary or marine environment and then examine what they have caught with a microscope.
Pollution Patrol
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In this activity, learners explore how engineers design devices that can detect the presence of pollutants in the air.
Saguaro Nest Cavities
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This activity (on page 3 of the PDF under GPS: Cactus Activity) is a full inquiry investigation into how some desert birds keep their cool.