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In this activity, learners discover the primary physical properties used to separate pure substances from mixtures.

In this activity, learners investigate diffusion by creating underwater "fireworks" using food coloring, oil and water.

In this activity on page 7 of the PDF, learners investigate the solubility of gas in water at different temperatures. This experiment will help learners determine if temperature affects solubility.

In this activity, learners mix water, cooking oil, and liquid food coloring to create beautiful colored designs in a cup. Use this activity to explore liquid density and solubility.

In this chemistry activity, learners prepare two petri dishes, one filled with water and one filled with milk.

Learners design their own experiment to compare how well cocoa mix dissolves in cold and hot water. They will see that cocoa mix dissolves much better in hot water. Adult supervision recommended.