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Counting With Quadrants
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Millions of organisms can live in and around a body of water.
The Earth's Timeline
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In this group activity, learners will mark important developments of life on Earth on a timeline (each foot in length representing 200 million years).
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A Universe Without Supernovae
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This fun and simple hands-on astronomy activity illustrates the value of supernovae in the universe.
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The Thousand-Yard Model
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This is a classic exercise for visualizing the scale of the Solar System.