Erosion by Gravity

Landslides, mudslides, and rock falls are examples of erosion by ___________.

• gravity

• glaciers

• wind

• running water

Tags

NGSS.MS-ESS3-2

NGSS.MS-PS2-4

Piles of large rocks are often found at the bottoms of cliffs in mountainous regions. These piles of rocks were primarily formed by which agent of erosion?

• running water

• gravity

• glaciers

• wind

Tags

NGSS.MS-ESS2-2

How do rock and soil move downhill?

• Gravity constantly pulls on everything on Earth, including rocks. When rocks are weakened and broken apart by weathering, gravity will pull them downhill. Gravity will also cause rocks to fall when a hillside or cliff is undercut by a river or waves along a shoreline, or when rock material and soil become saturated with water.

• Erosion is the removal of weathered rock from one location to another. Most erosion is caused by water, ice, and wind,

• A cavity in the ground, especially in limestone bedrock, caused by water erosion and providing a route for surface water to disappear underground.

• very quickly

Tags

NGSS.MS-ESS2-2

What is another name for the downhill movement of rock material and soil caused by gravity?

• land wasting

• mass wasting

• mass slide

• land mass

Tags

NGSS.MS-ESS3-2

What is a fast erosion event caused by moving water and gravity?

• earthquake

• frozen pipe

• cracked sidewalk

• mudslide

Tags

NGSS.MS-ESS2-3

A _____ occurs when weathered rock drops from a cliff and rolls and tumbles downhill.

• flow

• slide

• fall

• creep

_______ happens when a large mass of rock breaks off as a unit and slips down a hillside along a surface that is parallel to the slope.

• flow

• slide

• fall

• creep

Tags

NGSS.MS-ESS2-2

Imperceptibly slow downhill movement of soil and rock is known as _________.

• flow

• slide

• fall

• creep

Excessive rainfall may saturate rock and soil, causing it to break away and flow downhill as _________.

• avalanche

• mudflow

• earthflow

• lahar

Tags

NGSS.MS-ESS2-4

Which of the following are types of mass wasting? Mark all that apply.

• landslide

• avalanche

• creep

• lahar

Tags

NGSS.MS-ESS3-2