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

2. A look inside the Earth

3. E a r t h’ s C r o s s - s e c t i o n

4. Layers of the Earth Crust –________________ and
 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. E a r t h’ s C r o s s - s e c t i o n

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. E a r t h’ s C r o s s - s e c t i o n

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