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Learners will compare the growth rate and appearance of crystals forming on small rocks to those growing on miscellaneous objects. Learners will also investigate how temperature (warm vs.

In this activity, learners explore sublimation by conducting experiments with dry ice.

In this activity, learners touch supercooled water drops with an ice crystal and trigger the water drops to freeze instantly.

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, 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 sublimate dry ice and then taste the carbon dioxide gas.

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

In this activity, learners discover that sand is the major ingredient in glass.

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

Learners explore the variables that affect the properties of ice and the places where different types of ice are found.