Earth's Layers and Plate Tectonics

What are the two different types of crust? (Hint: they verbally mentioned one then wrote down the other)

What is the Earth's mantle primarily composed of?

• Solid rock

• Liquid metal

• Liquid rock (magma)

• Solid metal

Which layer of the Earth is the thickest?

• The crust

• The mantle

• The outer core

• The inner core

The outer core is made out of

The outer core is made out of specifically:

• Iron and nickel

• Pennis and quarter

• Zinc and graphite

• Gold and copper

What is the process called where warm magma rises and cold magma sinks within the Earth's mantle?

• Subduction

• Ridge push

• Convection

• Slab pull

What is the primary force responsible for the movement of tectonic plates?

• Gravitational pull from the moon

• Convection currents in the mantle

• Earth's rotation

• Volcanic eruptions