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What Are Periods and Epochs
earth and space science · MS-ESS1-4
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“spanning hundreds of millions to billions of years” worksheets and activities
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Grades 5–8
What Are Eons and Eras
earth and space science · MS-ESS1-4
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Grades 6–8
How Do Uranium Deposits Form
earth and space science · MS-ESS3-1
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Grades 5–8
What Is a Galaxy?
earth and space science · MS-ESS1-1
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Grades 5–8
What Does the Grand Canyon Reveal
earth and space science · MS-ESS1-4
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Grades 5–8
What Is the Phanerozoic Eon
earth and space science · MS-ESS1-4
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Grades 5–8
What Is the Asteroid Belt
earth and space science · MS-ESS1-3
$1.50
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