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In this physics activity, learners will explore buoyancy.

Experiment with liquids of different densities and create liquid layers. For example, oil and water have different densities: oil floats on water because it is less dense than water.

In this activity, learners create a kind of balance device using a wire coat hanger, some string, and paper cups.

This activity about density provides instructions for making a miniature "lava lite" with just salt, oil, water, and food coloring.

In this activity, learners will make predictions and experiment with different objects to see if they sink or float.