Earth's Interior

What are TWO sources of heat in Earth’s core?

• The sun

• High Pressure

• Radioactive Decay

• Convection in the mantle

• Leftover heat from the Earth’s formation

What is the heat source that powers the convection currents in the mantle?

• The Sun

• The Inner Core

• Petroleum

• The Magnetosphere

To learn about Earth’s interior, geologists study how seismic waves move through Earth.

• True

• False

Tags

NGSS.HS-ESS1-5

Which lists the main layers of Earth in order from outermost to innermost?

• Lithosphere, asthenosphere, mesosphere

• Core, mantle, crust

• Crust, mantle, core

• Mantle, core, crust

In which layer of Earth is the asthenosphere located?

• Inner core

• Mantle

• Outer core

• Crust

Which best describes the mantle?

• Molten metal

• Dense, solid metal ball

• Hot but solid rock

• Dry land and ocean floor

A layer of molten iron and nickel that surrounds the inner core of Earth.

• crust

• mantle

• outer core

• inner core

The soft layer of the mantle on which the lithosphere floats.

• crust

• mantle

• lithosphere

• asthenosphere

A dense sphere of solid iron and nickel at the center of Earth.

• crust

• mantle

• outer core

• inner core

The layer of hot, solid material between Earth's crust and core.

• crust

• mantle

• outer core

• inner core