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

Learners see convection currents in action in this highly visual demonstration. Sealed bags of colored hot or cold water are immersed in tanks of water.

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

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.

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

Learners color and cut out a spiral-shaped snake. When they hang their snake over a radiator, the snake spins.