Earth Layers and Rocks

This layer contains the upper mantle and the crust.

• Mesosphere
• Asthenosphere
• Lithosphere
• Core

Which layer of the Earth is the only liquid layer?

• Outer Core
• Inner Core
• Mantle
• Lithosphere

Which layer(s) of the Earth make up the asthenosphere?

• Part of the upper mantle
• Crust, mantle, Core
• Crust and upper mantle
• Only the crust

Which layer is considered the thinnest layer?

• Mesosphere
• Core
• Mantle
• Crust

Your teacher has asked you to make a model of the interior of the Earth. In your model, how do the thicknesses of the lithosphere and crust compare?

• The lithosphere is thinner than the crust.

• The lithosphere is exactly the same thickness as the crust.

• The lithosphere is thicker than the crust.

• The lithosphere is thicker than the oceanic crust, but thinner than the continental crust.

Some students use an apple to represent the Earth. What is the best reason to use an apple for this comparison?

• The skin of an apple is very thin, and the crust of the Earth is very thin.

• The flesh of an apple is made of the same material all the way through, and the interior of the Earth is the same all the way through.

• The seeds of the apple are very light in comparison to the rest of the apple, and the core of the Earth is also made of very light matter.

• The stem of the apple comes from the core and the North Pole comes from the Earth's core.

Which statement lists the layers in the correct order from the center of Earth to the outermost layer of Earth?

• Inner Core, Outer Core, Mantle, Crust

• Inner Core, Outer Core, Crust, Mantle

• Outer Core, Inner Core, Mantle, Crust

• Outer Core, Inner Core, Crust, Mantle

To learn about the temperature of the mantle, which is a scientist MOST likely to study?

• characteristics of the ocean floor

• volcanoes

• the fossil record

• the movement of tectonic plates

Which of these best describes the relationship between the inner core, outer core, mantle, crust, asthenosphere, and lithosphere?

• The coolest layers are farthest from the core.

• The lease dense layers are closest to the core.

• The layers with the highest concentration of metals are closest to the crust.

• The layers that remain in a molten state are closest to the crust.

Which layer of Earth includes the crust?

• atmosphere

• hydrosphere

• asthenosphere

• lithosphere