Lesson 1-Through Thick and Thin!

1. How would you compare the oceanic and continental crust?

• Oceanic crust is heavy and dense, while continental crust is light.

• Oceanic crust is basaltic, while continental crust is granitic.

• Oceanic crust is younger than continental crust.

• All the answers are correct.

What will happen when an oceanic crust and continental crust collide to one another?

• The oceanic crust will move downward because it is denser.

• The continental crust will move downward because it is denser.

• The continental crust will move below the oceanic crust because it is denser.

• The oceanic crust will move above the continental crust because it is less dense.

What composes the Earth’s lithosphere?

• oceanic crust

• continental crust

• continental crust and oceanic crust

• crust and the upper layer of the mantle.

What type of crust is made up of granite rocks?

• oceanic crust

• continental crust

• both oceanic and continental

• neither oceanic nor continental

Which crust is thin but with more density?

• continental crust

• oceanic crust

• both oceanic and continental

• neither oceanic nor continental

What do you call the rigid outer part of the earth?

• atmosphere

• biosphere

• hydrosphere

• lithosphere

What makes up the lithosphere?

• crust and the upper layer of the mantle.

• continental crust

• continental crust and oceanic crust

• oceanic crust

What is the correct order of the layer of the earth from the center?

• crust, mantle, core

• crust, core, mantle

• core, mantle, crust

• mantle, core, crust

What type of rocks is made up the oceanic crust?

• basalt

• granite

• pumice

• limestone

Which crust is thicker but with lesser density?

• continental crust

• oceanic crust

• both oceanic and continental

• neither oceanic nor continental