Unit 3 Lesson 1 Earth's Interior

Gravity

Magnetism

Friction

Pressure

Gravity pulled the gas and dust together.

A black hole pulled the gas and dust together.

Magnetism attracted the gas and dust together.

An explosion pushed the gas and dust together.

Gas giants have gaseous cores and rocky surfaces because the planets are far from the sun.

Gas giants formed close to the sun and contain deep, gaseous atmospheres.

Gas giants contain ices because these planets formed far enough from the sun that these materials could condense.

Gas giants contain no rock or metals because the planets are too cold for these materials to condense.

Gravitational potential energy

Nuclear fusion

Chemical reactions

Solar radiation

Due to volcanic activity

Through tectonic movements

By gravitational separation

From meteor impacts

Uniform mixture of molten materials

Spherical layers with different properties

Gravity pulling dense materials toward the center

Solid state of Earth

Oceanic Crust

Continental Crust

Mantle Crust

Lithosphere Crust

#1

#2

#3

None of the above

Silicon and oxygen

Iron and nickel

Aluminum and magnesium

Calcium and sodium

The outermost layer of Earth

The inner core

The mantle

The asthenosphere

The upper part of the mantle

The lower part of the mantle

The outer core

The inner core

Outer core

Inner core

Mantle

Crust

Crust

Mantle

Outer Core

Inner Core

The lithosphere is thicker than the crust.

Both are outermost layers of the Earth.

The crust is a physical layer.

The lithosphere contains the mantle.