We used Epsom salt, but you can use other solids ... This quickly cools the solution, making crystals form faster. While this is great for making nice frosty decorations, if you want to grow ...

Examples of crystals include sugar, snowflakes (ice crystals), diamonds, and salts, such as the Epsom salt in this activity. When the water used to dissolve the Epsom salt evaporates, the salt ...