A plastic test tube with green hydrophobic sand inside. There is an image of the hydrophobic sand being poured into water to demonstrate its hydrophobic properties.

Hydrophobic Sand Test Tubes

Regular price $7.95
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This amazing sand repels water so it always stays dry! Magic sand is dyed and coated to repel water, so it doesn't get wet. When submerged in water, it can be molded and structured. Simply separate from water to reuse! Great for learning about hydrophobic substances. 

This item ships in randomly selected assorted colours based on availability.