Earth's Layers

Which layer of Earth is characterized by rock that is plastic, or soft enough to flow?

• asthenosphere
• crust
• lithosphere
• inner core

The solid, outer layer of the Earth that consists of the crust and the rigid upper part of the mantle

• Lithosphere
• Mesosphere
• Mantle
• Crust

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

The lithosphere combines what two layers?

• Athenosphere & Crust

• Crust & Upper Mantle

• Mantel & Asthenosphere

Identify layer  #20.

• mantle
• asthenosphere
• inner core
• outer core

The order of the earth’s compositional layers from most dense to least dense are

• Inner Core, Crust, Mantle and Outer Core
• Crust, Mantle, Outer Core and Inner Core
• Inner Core, Outer Core, Mantle and Crust
• Crust, Outer Core, Inner Core and Mantle.

What observation can we make about Earth’s lithosphere AND asthenosphere?

• The asthenosphere floats on top of the lithosphere.
• The crust and the core make up the lithosphere.
• The crust and mantle make up the asthenosphere. 
• The lithosphere floats on top of the asthenosphere

Scientists determine what Earth’s interior looks like by using:

• Volcanoes
• Seismic Waves
• Continental Drift
• Convection Currents

Which earth layer is #2?

• Crust
• Mantle
• Outer core
• Inner core