Erosion by Gravity

Rock masses or debris slide downhill on less steep slopes. Triggered by heavy rains or earthquakes.

• Rockslides

• Rockfalls

• Mudflow

• Earthflow

Tags

NGSS.MS-ESS2-2

Loose rock fragments fall from steep slopes. Also known as avalanches.

• Rockfall

• Rockslide

• Soil Creep

• Mudflow

Tags

NGSS.MS-ESS2-2

A pile of rock fragments at the bottom of a rockfall

• talus

• hill

• mountain

• debris

Invisibly slow downhill movement of soil that causes tilting of poles, fences or trees.

• soil creep

• earthflow

• rockfall

• mudflow

The bent trees are indications of

• soil creep

• earthflow

• mudflow

• rockslide

The steepest angle at which a particular sediment can remain stable on a slope

• angle of repose

• altitude of Polaris

• latitude

• sun angle

An avalanche is an example of which process?

• Weathering

• Erosion

• Deposition

• Volcanic Eruption

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-2

The picture shows what type of mass movement?

• mudflow

• earthflow

• slump

• soil creep

Tags

NGSS.MS-ESS2-2

Landslides, mudslides, and rockfalls are examples of erosion caused by

• Gravity

• glaciers

• wind

• running water

Tags

NGSS.MS-ESS2-2

What force of erosion causes large piles of rocks to fall to the bottom of a cliff or mountain?

• Running water

• Glaciers

• Wind

• Gravity