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This three-part lab helps learners understand the essential principles governing diffusion and osmosis.

In this chemistry challenge, learners systematically investigate which combination of four solutions produces a deep red color.

Working in groups, learners model the continuous destruction and creation of ozone (O3) molecules, which occur in the ozone layer.

In this chemistry activity (page 5 of the PDF), learners will use milk and a few other basic ingredients to create a chemical change to make a color wheel.