Ghsot+Crystals+Marty

Materials: 1. Ghost Crystals 2. Water in cups 3. String 4. Food Coloring

Procedure: 1. Pour some Ghost Crystals into a container and fill this container with water. (If there are too many than divide the crystals into multiple containers) 2. When they are at the top take one out of the container and tie a string around it. 3. Pull the string and crystal out and in the water.