Earth's Layers

Due to extreme pressure, the inner core of the Earth is

• Solid

• Liquid

• Gas

• Plasma

Earth is made of different layers that have varying characteristics. Which is the thickest layer?

• Mantle

• Inner Core

• Outer Core

• Crust

A student uses clay to construct a model of Earth. Which layer of the model should be the thinnest layer?

• the layer representing the mantle

• the layer representing the outer core

• the layer representing the inner core

• the layer representing the crust

Which is the basic composition of Earth's core?

• The solid inner core is surrounded by a liquid outer core.

• The liquid inner core is surrounded by a solid outer core.

• Bot the inner core and the outer core are solid

• Both the inner core and outer core are liquid

Which section of Earth is comprised primarily of liquid metal?

• Crust

• Mantle

• Outer Core

• Inner Core

Which of these correctly lists Earth's layers in order from the center to the surface?

• outer core, inner core, asthenosphere, lithosphere

• asthenosphere, lithosphere,outer core, inner core,

• inner core, asthenosphere, lithosphere,outer core,

• inner core, outer core, asthenosphere, lithosphere,

The core of Earth is divided into two layers. The inner core is made of

• Basaltic rock

• Silicate Rock

• Solid iron and nickel

• Molten iron and nickel

The continental crust floats on top of the mantle because the crust is

• less dense than the mantle

• made of a liquid material

• made up of oxygen which is a light element

• separated from the mantle by a layer of water

The inner core of Earth is solid because of the

• rate of rotation

• extreme temperature

• amount of pressure

• magnetic field

Which of these have the greatest direct influence on the movement of the lithosphere?

• the Sun

• the Moon

• Earth's core

• Earth's mantle