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Shrinky Dinks

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Heat makes some materials expand, and it makes others shrink.
1 cent - $1 per student Ages 4 - 11 30 to 45 minutes

Great Balls of Goop

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In this activity, learners mix white craft glue and borax solution together to produce a surprising new material: GOOP!
1 cent - $1 per student Ages 6 - 11 10 to 30 minutes