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The Earth’s Interior

The Earth’s Interior. Glencoe Ch. 12-3 Pages 370-372. A look inside the Earth. E a r t h’ s C r o s s - s e c t i o n. Layers of the Earth. Crust –________________ and __________________ layer  2 types of crust. Layers of the Earth.

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The Earth’s Interior

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  1. The Earth’s Interior Glencoe Ch. 12-3 Pages 370-372

  2. A look inside the Earth

  3. Earth’sCross-section

  4. Layers of the Earth • Crust –________________ and __________________ layer  2 types of crust

  5. Layers of the Earth 1. Oceanic crust – under ______________, 4-7 km thick (high density) 2. _____________________ crust – under continents, ___-____ km (lighter in density)

  6. Earth’sCross-section

  7. Layers of the Earth - Mantle – _____________ km thick - rock - Upper mantle – ________________ rock (closer to surface) - ________________ mantle – plastic rock (___________ magma)

  8. Layers of the Earth Lithosphere – _____ and solid upper mantle  solid and rocky • Asthenosphere – soft and plastic __________mantle _______, _______, ________ rock and magma

  9. Layers of the Earth

  10. Layers of the Earth - _______________ – the innermost / center of the Earth - thought to be made of ___________ and ______________ 1. Outer core – _______________ metal 2. Inner core – _______________ metal

  11. Earth’sCross-section

  12. Layers of the Earth - As you go toward the Earth’s core the temperature steadily ______________ - Evidence – 1. Radioactive decay of unstable _______ 2. Heated liquid rock in mantle 3. Heated solid and liquid metal in core heat is radiated outward toward the surface

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