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Shrinkers

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In this hands-on activity, learners use heat to shrink samples of polystyrene plastic (#6 recycle code). Learners compare the size and shape of the plastic pieces before and after shrinking.
1 cent - $1 per group Ages 6 - adult Under 5 minutes

Trading Places

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In this activity, learners discover that atoms and ions of different metals will change places.
1 cent - $1 per group Ages 11 - adult Under 5 minutes