1. It is very interesting to put crystal ice cubes into a transparent container, add a proper amount of water, and observe its change and expansion process in water.

2. Add a proper amount of food pigment or watercolor pigment to water, and then add crystal ice cubes to make crystal ice cubes of various colors.

3, put the crystal ice cubes in the sun or shine with a flashlight, you can make crystal ice cubes similar to jewelry, very beautiful.