Growing Crystals

In this Science project, we just added some salt to water and watched the change over a month.
Salt is a type of Crystal.  The same type of reaction occurs with other types of crystals if you use crystal powder made up of ground up crystal. When we added the salt to the water, it made what scientists call a "solution".  This starts a process called "nucleation" which means the process where a small number of molecules become arranged in a pattern of a crystal.

It is amazing how the crystals kept on growing and even went up the side of the jar and down the outside.  It almost seemed like they were alive and trying to escape from the jar, but what really happens is the molecules continue to re-organize themselves into a crystal which appears to grow.  Scientists also call this "Self-organization".