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In this geology activity, learners create a model using a mixture of salt and sand inside a CD case. When the case is tilted or inverted, the mixture dramatically sorts into a layered pattern.

$5 - $10 per group Ages 11 - 18 1 to 2 hours
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In this seismic simulation, learners play a "who-dunnit" game to explore earthquakes.

free Ages 11 - adult 1 to 2 hours
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This is an activity to do when there is a solar eclipse!

1 cent - $1 per group Ages 8 - adult 1 to 2 hours
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In this activity, learners use rice grains to model the composition of the atmosphere of the Earth today and in 1880. Learners assemble the model while measuring percentages.

$1 - $5 per group Ages 11 - 18 1 to 2 hours