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Chapter 1 focuses on Plate Tectonics looking at the Earth's layers, Earth's evolution, and plate movement. Lessons included in this chapter: Earth's layers, Pangea to present, How Earth's Plates Move.
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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2
One of the most frightening and destructive phenomena of nature is a severe earthquake and its terrible aftereffects. An earthquake is a sudden movement of the Earth, caused by the abrupt release of strain that has accumulated over a long time. For hundreds of millions of years, the forces of plate...
Grade Level   7 8 9 10 11 12
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