Star Wars Science Lightsaber Crystal Growing Lab - Uncle Milton Grow and display a real crystal  and light it up Jedi blue or Sith red, just like a Jedi master choosing how to use the Force. Easy to make solution that crystallizes and forms into a real crystal over approximately 7-10 days Science learning poster connects the crystal of a Jedis lightsaber in the Star Wars galaxy to different kinds of crystals and their uses on Earth. Fascinating and inspiring display lights up blue or red to show the dual power of the Force. STEM: Geology, Electronics, Physics