Earth

Which layers of Earth are mostly made of solid material?

• inner core and outer core

• crust and inner core

• crust and mantle

• mantle and outer core

The inner core of Earth is solid because of the

• rate of rotation.
• extreme temperature.
• amount of pressure.
• magnetic field.
  

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

A student uses clay to build models of an oceanic plate and a continental plate. What characteristic CANNOT be accurately represented by the models?

• the shapes of plates

• the relative sizes of plates

• the relative densities of plates

• the arrangement of plates relative to one another

Which of the following has the greatest direct influence on movement of the lithosphere?

• the Sun

• the Moon

• Earth’s core

• Earth’s mantle

Which section of Earth is composed primarily of liquid metal?

• crust

• mantle

• outer core

• inner core

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

• the mantle

• the inner core

• the outer core

• the crust

A difference between the oceanic crust and the continental crust is that the oceanic crust is

• composed chiefly of sedimentary rocks.

• more dense than the continental crust.

• older than the continental crust.

• continually being created.

The interior of Earth is made up of several physically different layers. The solid layer of Earth that moves over a viscous layer is called the

• core

• crust

• asthenosphere

• atmosphere

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