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In this activity, learners will explore reptile biology by taking temperature readings in various places and comparing them.

$1 - $5 per student Ages 4 - 11 30 to 45 minutes
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In this activity, learners will explore the ways natural materials can produce sounds. Appropriate for any age, learners can make individual music or create a symphony with others.

free Ages 4 - adult 10 to 30 minutes
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Learners grow sugar crystals (rock candy). They make a hot solution that has an excess of sugar dissolved in it, then as the solution cools, they see sugar crystals form.

$1 - $5 per student Ages 6 - 11 4 to 24 hours
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In this activity, learners investigate soil conditions by creating a soil map. Learners record soil characteristics and compare the conditions of soil in different grid sections.

1 cent - $1 per student Ages 4 - 14 1 to 2 hours
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Make impact craters with marbles (or rocks or washers) in a container of flour. Find out what you can learn about your "comets" by the craters they make.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this activity, learners build models of comets, using edible materials, to learn about comets' structure.

Over $20 per group Ages 6 - 18 45 to 60 minutes
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In this earth science activity, learners conduct a series of short experiments to explore how rocks change.

$5 - $10 per student Ages 6 - 11 30 to 45 minutes