Earth structure

What is the name of the thin layer of solid rock that makes up the outermost part of Earth?

• core
• crust
• mantle
• biosphere

The Earth system has _____ main layers.

• 7

• 4

• 9

• 3

"C" is the outer core. Near which layer will you find plate tectonics (the slow movement of Earth's plates)?

• A

• B

• C

• D

1. Which two metals are thought to be found in the core?

• iron and steel

• iron and nickel

• gold and silver

• iron and copper

When two continental plates crash into each other at a very slow rate, which geologic feature is most likely formed by the process?

• canyons

• valleys

• plains

• mountains

Which layer of Earth is located above the outer core?

• crust
• inner core
• mantle
• lithosphere

A dense ball of solid iron and nickel.

• crust
• inner core
• mantle 
• outer core

Is the outer core a liquid or solid?

• liquid
• solid

Temperature _____________________ as you go deeper into the earth.

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

The outer core is made up of liquid iron and nickel?

• true

• false