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In this activity, learners will "paint" their own crystal artwork by creating a picture with a super saturated salt solution.

Learners grow sugar crystals (rock candy). They make a hot solution that has an excess of sugar dissolved in it, then as the solution cools, they see sugar crystals form.

This lesson focuses on surface area and how the shape of sugar crystals may differ as they are grown from sugars of different coarseness.

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

This activity shows you how to make amazing crystal spikes using Epsom salt and the sun.

Visitors observe a tray holding a crystal-covered brick. The crystals were created by evaporation of a solution containing liquid bluing, ammonia, and salt.

In this activity, learners compare different types of salt crystals under a magnifying glass.