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This experiment describes how to create a "dribble bottle" which only leaks water when the cap is unscrewed. The full water bottle has a small hole made with a push pin.

1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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This is part 2 of the three-part "Crayon Rock Cycle" activity and must be done after part 1: Sedimentary Rocks. In this activity, learners explore how metamorphic rocks form.

$1 - $5 per student Ages 4 - adult 10 to 30 minutes