This Planet Really Rocks
Growing Crystals Activity
Minerals contain tiny particles called atoms. The atoms in most minerals form a repeating, three-dimensional pattern. This makes a mineral grow into a crystal with a regular shape and flat sides. Some crystals form cubes. Others grow into columns with three or more sides. These are called prisms.
An example of a mineral that has cubic crystals is halite. A common name for halite is salt. This means we use a mineral to flavor our food.
Below is an experiment that you can do to grow your own salt crystals. There is also an activity page for you to cut and fold a cube that has the same shape as a salt cube.
thread or string
If you enjoyed this activity, you may want to visit this site to learn how to make Rock Candy.
You might want to invest in a commercial crystal growing kit like the
one Preston used to grow his crystals.