20R

Thickness: 10-70km thick

Thinner at oceanic crust

Made of: Rocks, minerals, and less dense elements (oxygen, silicon)

Extra information: Coolest and thinnest layer, brittle (can crack)

Thickness: 2900 km thick

Made of: Solid

Rocks (some melted), heavier elements (iron and magnesium)

Extra information: “flows” in asthenosphere

500°C to 4000°C

Thickness: 2300 km thick

Made of: Molten iron and nickel (heavy)

Liquid metal

Extra information: Melted metals

Around 4,000°C to 5,700°C

Thickness: 1200 km thick

Made of: Iron

Solid metal

Extra information: Most dense and hottest layer (6,000°C)

Spins faster than Earth

TRENDS AND PATTERNS?

Deeper into Earth

• Temperature increases

• Pressure increases

• Density increases (heavier)