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This demonstration activity models how Venus appears from Earth.

1 cent - $1 per group Ages 4 - 14 5 to 10 minutes
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In this activity about the solar system, learners use various light sources to examine ice with different components to understand how NASA studies planets and moons from space.

$1 - $5 per group Ages 4 - 11 1 to 2 hours
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In this activity, learners explore how distance can affect the way we perceive the size of an object.

free Ages 4 - 18 5 to 10 minutes