Give your kids a fun experimentation kit that will allow them to grow crystals. This is the same formula that was used by astronauts thirty years ago in space to grow crystals in a zero gravity environment. Now, your children can enjoy the same excitement as the astronauts when they get to see their crystals grow with the Classic Crystal Growing Kit. The kit includes ten experiments that produce all kinds of crystals and formation such as hexagonal quartz and isometric fluorite. The kit comes with a computer CD that provides information about the International Space Station and crystal growth. 

To buy, click here.