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“Exploring Earth: Investigating Clouds” is a hands-on activity in which visitors create a cloud in a bottle and explore it with laser light.

In this activity, learners observe the water cycle in action! Water vapor in a tumbler condenses on chilled aluminum foil — producing the liquid form of water familiar to us as rain and dew.

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

In this activity about phase change and condensation, learners boil water in an empty pop bottle in the microwave.

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 activity, learners heat ice and water of the same temperature to get a hands-on look at phase changes. This is an easy and inexpensive way to introduce states of matter and thermodynamics.

In this weather-related activity, learners make a portable cloud in a bottle.

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