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Learners act as engineers and design mini submarines that move in the water like real submarines.

In this online interactive simulation, learners will test the pH of liquids like coffee, spit, and soap to determine whether each is acidic, basic, or neutral.

In this activity, learners explore density and buoyancy as they design and construct rafts.

In this activity, learners watch a video to learn about a couple who built a home out of shipping containers in Brooklyn, New York.