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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)