Inside Earth 1.1 Earth’s Interior

Geologists Geologists = scientists who study forces that shape Earth

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

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

Geologists study Earth’s 7 continents

What happens when you dive deep in a pool?

What happens when you dive in a pool? Increase pressure

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

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

Crust Rocks Mountains and Oceans

Mantle 2 parts

Mantle 2 parts Rigid UPPER mantle Soft LOWER mantle

Lithosphere Rigid UPPER mantle and the crust make up the Lithosphere

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

Core 2 parts Outer Core is molten metal

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

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

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

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

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