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A caller on an automotive-themed radio program asked for help with a problem. It seems that when it rained her windshield wipers sometimes turned themselves on. How is this possible? This resource provides an explanation by exploring electrical... (View More)

This activity is about the kinds of rocks on the Moon. Learners will carefully look at, describe, and learn about the origins of the six lunar samples contained in the disk. This activity is in Unit 2 of the Exploring the Moon teachers guide, which... (View More)

Students will collect samples of particles in the air on simple slides they make themselves. They will classify, count and chart their findings, draw conclusions, make predictions, and compare their findings to other available data. Supplies needed... (View More)

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