If you're still waiting on that plane ticket to Mars, why not bring a little sand from the red planet home with you? These packets contain the closest thing to sand from Mars. It's ordinary sand that has been exposed to the vapors of a silicon compound. It changes the composition of the sand and makes it un-bondable with water. Try it for yourself - expose it to water and watch in amazement as it never gets wet! There are many creative uses for Space Sand - it has been used to clean oil spills, improve the growth of plants, and is even being used in experiments covering the Mars exploration. What fun and interesting experiments can you conduct using Space Sand? Explore the possibilities! Comes with one packet each of Red, Yellow, and Blue Space Sand. Ages 3 and Up. Type: Sets Gender: Unisex Age: Toddler,Child,Teen,Adult