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In this activity, learners act as water molecules and travel through parts of the water cycle to discover that it is more complex than just water moving from the ground to the atmosphere.

free Ages 6 - 14 30 to 45 minutes
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This is part 1 of the three-part "Crayon Rock Cycle" activity. In this activity, learners explore how sedimentary rocks form.

$5 - $10 per student Ages 4 - adult 10 to 30 minutes
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In this activity, learners explore why frost forms. They create their own frost using a solution of ice water and salt in a glass.

1 cent - $1 per student Ages 8 - 14 10 to 30 minutes