Earth Layers

What is the thinnest layer of the earth’s composition?

• mantle
• inner core
• crust
• outer core

The thickest layer of the earth is the 

• crust
• mantle
• inner core
• outer core

The thin and solid outermost layer of the Earth above the mantle

• Mantle
• Inner Core
• Crust
• Outer Core

The central part of the Earth below the mantle

• Crust
• Asthenosphere
• Core
• Mantle

Temperature _____________________ as you go deeper into the earth.

• increases
• decreases
• goes up and down depending on the layer
• stays the same

Pressure ______________________ as you go deeper into the Earth

• increases
• decreases 
• goes up or down depending on the layer
• stays the same

How have scientists been able to study Earth's mantle?

• In some places, Earth's crust thins enough to see mantle.

• Earth's surface heat warms the crust turning it into mantle.

• Cooling crust material becomes mantle over time.

• In some places, mantle rock pushes to Earth's surface.

What are the two kinds of crust that the Earth has?

• Oceanic and Crustatious Crust
• Oceanic and Continental Crust
• Optic and Continental Crust

Which layer of the earth has the lowest temperature?

• Crust
• Mantle
• Outer Core
• Inner Core

Which layer of the earth is under the highest pressure?

• Crust
• Mantle
• Outer Core
• Inner Core