Earth Science Chapter 8 Lesson 2

An ___________ is a sudden movement of part of Earth's crust.

• earthquake

• lava flow

• tsunami

• tornado

Earthquakes are commonly caused when sections of the _________ come together, move apart, or slide past each other.

• mantle

• core

• crust

• atmosphere

These movements of the crust usually take place along a _________, or crack, in Earth's crust.

• fault

• fallen

• fauler

• bend

Earth's crust is always changing.

• True

• False

The strength of an earthquake depends on the amount of __________ that has built up.

• altitude

• pressure

• air

• heat

During an earthquake, the movement of rock near Earth's surface can create ____________.

• shells

• tiles

• landforms

• valleys

A __________ is an opening in Earth's crust through which hot ash, gases, and molten rock escape from deep inside Earth.

• tornado

• earthquake

• volcano

• tsunami

The molten rock beneath Earth's surface is called _________.

• magma

• lava

• crust

• debris

Molten rock that reaches Earth's surface, as when a volcano erupts, is called ___________.

• magma

• lava

• deris

• crust

A __________ is the sudden movement of loose rock and soil down a steep slope.

• landslide

• volcabo

• avalanche

• tsunami