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In this activity, learners explore the different salinities of various sources of water by taste-testing.

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

Learners carefully look at four known household crystals.

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

Don't scream for ice cream -- make it with milk, sugar, flavoring and some 'salt-water' ice. Discover the chemistry of ice cream by creating your own.

In this chemistry activity (page 1 of the PDF), learners will observe a physical change.