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Learners see that a carrot slice sinks in fresh water and floats in saltwater.

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

In this activity, learners build models of atoms and molecules, then consider their role in different phases of matter, density, and mixtures and solutions.

In this colorful activity (page 6 of the PDF), learners will make a multicolor density column by using different concentrations of sugar solutions.

Learners carefully pour vegetable oil, water, and corn syrup in any order into a cup and discover that regardless of the order they are poured, the liquids arrange themselves in layers the same way.

In this chemistry activity (on page 2 of the PDF), learners make a layered drink with liquids of different densities.

In this activity about water solubility and density, learners use critical thinking skills to determine why water can dissolve some things and not others.

Learners see that a can of regular cola sinks while a can of diet cola floats. As a demonstration, bubble wrap is taped to the can of regular cola to make it float.