Hydrophobic Sand - It looks like ordinary sea sand and it feels like ordinary sand - but it is anything but ordinary!! In this kit, we explore the fascinating scientific qualities of hydrophobic sand and it's uses. We compare it with regular sand and witness the amazing differences. Does it really stay dry when taken out of water? How does it assist us in the prevention of natural disasters? In a series of compelling experiments we will learn all there is to learn about the fascinating hydrophobic sand. Suitable for 6+