Giant Fish Eggs
Giant Fish Eggs
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Giant Fish Eggs

Regular price
$7.95
Sale price
$7.95
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10 in stock.
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Put these colorful tiny "eggs" in water, and in a short time, they will grow 600 times their original size!  Let them dry out and do it again!

These curious growing spheres are made from a chemical known as super absorbent polymer (or SAP). SAPs are amazing materials. They are long chains of molecules that join together in a net-like pattern. Water is pulled in through the holes of the net. then the molecule chains soak up tremendous amounts of water. When the molecules absorb water, they swell and soften and transform into a hydrogel.

Recommended age 3+

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