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Learners smell balloons filled with different scents to guess what's inside. From this, they infer the presence and motion of scented molecules.

The "Rocket Reactions" activity is an exciting way to learn about how materials interact, behave, and change.

In this experiment, learners will conduct chemical and physical tests to identify mystery substances.

In this activity, learners explore materials through paper chromatography.

In this activity, learners mix ingredients in a plastic bag, and then identify three characteristics of a chemical reaction: production of heat, color change, and production of a gas.