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Learners observe working lava lamps to understand how they work (included in PDF link).

In this activity, learners discover the relationship between temperature and pressure in the lower atmospheres of Jupiter and Earth.

This highly visual model demonstrates the atomic theory of matter which states that a gas is made up of tiny particles of atoms that are in constant motion, smashing into each other.

In this activity, learners explore how engineers have met the challenge of keeping foods, liquids, and other items cool.