Earth’s Interior Assessment Review

Match the description to the correct step on the convection current diagram.

• A

• Density of mantle material is less than material above it, so the materials begin to rise.

• C

• Core heat causes temperature to rise, therefore decreasing the density of material.

• D

• Rising material hits rigid lithosphere and cannot go up any further

• B

• The force of gravity is causing denser material to fall.

Tags

NGSS.MS-ESS2-1

Where are convection currents found?

• The crust

• The inner core

• The mantle

• The outer core

What are convection currents caused by?

• Temperature

• Lava

• Density

• Both temperature and density

Tags

NGSS.MS-PS1-4

Match the type of heat transfer to its definition:

• Convection

• The transfer of energy through empty space; has no direct contact between heat source and an object.

• Conduction

• Measure of how much mass there is in a volume of a substance

• Radiation

• Heat transfer by direct contact of particles or matter.

• Density

• Transfer of heat by the movement of a heated liquid (includes liquids and gases)

Match the layers of the earth to their description:

• Core

• Made mostly of the metals iron and nickel

• Mantle

• Layer of solid, hot rock 40 kilometers beneath the surface. Can be solid or liquid

• Crust

• Layer of solid rock that forms Earth’s outer “skin”

Match the layers of the earth to their description:

• mantle

• solid material extending all the way to Earth’s core

• inner core

• dense ball of solid metal

• asthenosphere

• uppermost part of mantle and the crust for a ridge layer about 100 kilometers thick

• lithosphere

• layer of molten metal that surrounds inner core

• outer core

• softer part of mantle below the lithosphere which is hotter and under increased pressure

Earth’s crust includes both the dry land and the ocean floor?

• True

• False

The oceanic crust occurs:

• below the ocean floor and is mostly made of basalt

• below the ocean floor and is mostly made of granite

• below continental land and is mostly made of basalt

The continental crust:

• Forms continents and is mostly made of basalt

• Forms oceans and is mostly made of granite

• Forms continents and is mostly made of granite

Geologists have used what types of evidence to learn about Earth’s interior?

• Rock samples

• Books

• Seismic waves

• Both rock samples and seismic waves