1. Inside Earth 1.1 Earth’s Interior

2. Geologists
Geologists = scientists who study forces that shape Earth

3. 2 kinds of Forces Constructive force = build up Example: Mountains and
Volcanoes

4. 2 kinds of Forces
Destructive force = wear down
Example:
Erosion

5. Geologists study
Earth’s 7 continents

6. What happens when you dive deep in a pool?

7. What happens when you dive in a pool?
Increase pressure

8. Same as you go to the center of the Earth
Increase pressure
and
Increase temperature

9. 3 Main Layers of the Earth
Crust = outer layer
Mantle = middle
Core = center

10. Crust
Rocks
Mountains and
Oceans

11. Mantle
2 parts

12. Mantle
2 parts
Rigid UPPER mantle
Soft LOWER mantle

13. Lithosphere
Rigid UPPER mantle and the crust make up the Lithosphere

14. Asthenosphere Below the rigid Lithosphere is the Asthenosphere
hot tar-like
soft like roasted marshmallow

15. Core
2 parts
Outer Core is molten metal

16. Core 2 parts Outer Core is molten metal
Inner Core is a dense ball of solid metal
(iron and nickel)

17. Earth’s Magnetic Field
Earth has a magnetic field just like a bar magnet

18. Earth’s Magnetic Field
Just like a bar magnet has a magnetic field that attracts iron filings in a circular pattern,

19. Earth’s Magnetic Field
Just like a bar magnet has a magnetic field that attracts iron filings in a circular pattern,
Earth also has a magnetic field with a similar magnetic field attraction

20. Earth’s Magnetic Field
So when you use a compass, the north-seeking needle of the compass aligns to Earth’s magnetic north pole