Inside Language, Literacy, and Content: Reading, Writing, & Language [Level A] - 87

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Inside Language, Literacy, and Content: Reading, Writing, & Language [Level A]
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The rock layers of the Grand Canyon show changes over time.

The rock layers of the Grand Canyon show changes over time.

Before You Move On

1. Summary Why do geologists look at the layers in rock?
2. Details Are the top layers of rocks older or younger than the bottom?

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