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Unit Plan
CK-12 Foundation

Ck 12: Earth Science: Universe

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] How we came to understand the universe.
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Unit Plan
CK-12 Foundation

Ck 12: Earth Science: Universe

For Students 6th - 8th
[Free Registration/Login may be required to access all resource tools.] Explains how we came to understand the Universe.