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In this activity, learners investigate how increased carbon dioxide (CO2) emissions from the burning of fossil fuels is changing the acidity (pH) of the ocean and affecting coral reefs and other marin

In this activity, learners make an electromagnet motor to demonstrate the most basic method of changing electrical energy into mechanical energy.

Learners build particulate matter collectors--devices that collect samples of visible particulates present in polluted air.

In this activity, learners use a compass, powerful magnet, and copper magnet wire to build a special generator known as a dynamo.