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In this activity, learners build a hovercraft using a paper plate, cup, and simple motor.

In this activity, learners watch a figure "magically" float up through the air.

In this activity, learners use oil, water, food coloring and antacid tablets to create a bubbling lava lamp. Use this activity to introduce concepts related to density, hydrophobicity vs.

In this activity, learners experiment with the density of ice, water, and oil. Learners will discover that the density of a liquid determines whether it will float above or sink below another liquid.