Magic Sand

A hydrophobic substance (water hating substance) is added to differently colored sand which means that when the sand is dumped into a bowl of water, it doesn't get wet - at all! This is an impressive trick, and is easy to do. All you have to do is buy a can of Scotchguard and spray it all over your colored sand - making it into a hydrophobic substance. Kids can do this experiment at home quite safely.

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