Space Sand™ is extremely similar to the soil on Mars in terms of properties. This unique sand is coated with a special nontoxic material that prevents the bonding of the water and silica sand molecules, which normally occurs when sand and water are mixed. This sand will not get wet and can be formed into shapes under water. The sand will be completely dry when removed from the water. Space Sand™ is even used in NASA Mars exploration classroom experiments. Informative header explains uses and outlines plenty of fun experiments. Includes four 1-lb. bags of Space Sand™ (red, yellow, blue, and natural), 24 biodegradable corn cups, 12 spoons, 12 student handouts, and teacher guide.