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In this activity, learners build models of atoms and molecules, then consider their role in different phases of matter, density, and mixtures and solutions.

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

In this chemistry activity (page 3 of the PDF), learners will learn about crystals by growing their very own.

In this chemistry activity, learners use the lowered freezing point of water to chill another mixture (ice cream) to the solid state.

Learners carefully look at four known household crystals.

In this activity, learners design a crushing test and discover that identifying and controlling the variables may be difficult.

In this activity, learners discover what happens when they crush wintergreen-flavored candies in a very dark room.