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Learners observe a flask with a balloon attached over the mouth and inverted inside the flask.

In this activity, learners explore Boyle's Law and discover that water will boil at room temperature if its pressure is lowered.

In this activity, learners use heat to separate zinc and copper in a penny. This experiment demonstrates physical properties and how physical change (phase change) can be used to separate matter.

In this experiment, learners float colored ice cubes in hot and cold water.

In this activity, learners sublimate dry ice and then taste the carbon dioxide gas.

"Sublimation Bubbles" allows learners to explore how some solid materials, such as dry ice, can phase change directly from their solid to gaseous form.