Planet Earth S.S.

Earthquakes often occur when two ________ slide past each other.

• pages

• plates

• landforms

Most of Earth's salt water is stored in

• wells

• oceans

• sprinkler systems

The theory of __________ helps explain how forces below Earth's surface have shaped our landforms.

• plate sliding

• plate tectonics

• plates breaking

Earth's ______ is an imaginary line around which it turns.

• axis

• latitude

• longitude

__________ is the most common cause of erosion.

• wind

• glaciers

• water

The distance north or south of the equator

• Latitude

• longitude

• water cycle

• surface water

Earth's yearly trip around the sun

• rotation

• revolution

• tropics

• birthday

Long periods of lower-than-normal precipitation

• monsoon

• water cycle

• runoff

• drought

The circulation of water from Earth's surface to the atmosphere and back

• water cycle

• runoff

• nitrogen cycle

• carbon cycle

magma that reaches Earth's surface to the atmosphere and back

• glacier

• lava

• molten magma