Weathering and Erosion

Which of the following statements describes weathering?

• Earth materials are broken down by physical or chemical processes

• Earth materials are carried away by wind, water, ice, or gravity

• Earth materials are dropped in a new location

Which of the following statements describes erosion?

• Earth materials are broken down by physical or chemical processes

• Earth materials are carried away by wind, water, ice, or gravity

• Earth materials are dropped in a new location

Which of the following statements describes deposition?

• Earth materials are broken down by physical or chemical processes

• Earth materials are carried away by wind, water, ice, or gravity

• Earth materials are dropped in a new location

Rock 'A' is likely

• Acid

• Limestone

• Granite

• Sandstone

Tags

NGSS.MS-PS1-2

Rock 'B' is likely (multiple answers)

• Sandstone

• Limestone

• Granite

• Shale

Tags

NGSS.MS-ESS1-4

NGSS.MS-PS1-2

Which explanation best describes how a boulder can turn into silt as it moves down a river?

• Water washes over the boulder until it is silt-sized.

• The boulder hits other rocks or objects and breaks apart.

• The boulder moves down the river until it lands in a basin and becomes silt.

• A chemical reaction turns the boulder into silt.

Tags

NGSS.MS-ESS2-2

The Colorado River started eroding the Grand Canyon 6 million years ago. Of the layers shown at location X, which two layers did the Colorado River erode away first?(Mark the one best answer.)

• Kaibab Formation and Toroweap Formation

• Redwall Limestone and Supai Group

• Bright Angel Shale and Tapeats Sandstone

• All layers are eroded at the same time by the Colorado River.

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

If you returned the the Grand Canyon in 1 million years, what rock layer could you likely see at river level?

• Muav Limestone

• Redwall Limestone

• Supai Sandstone

• Hermit Shale

Tags

NGSS.MS-ESS1-4

What variables would determine how much the river has eroded the rock in a million years? (Multiple answers)

• How fast the water in the river is flowing.

• How hard the rock is.

• The temperature of the water in the river.

• The number of visitors who raft down the river in that time.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

What rock would you suspect to find under Kimi Sandstone at paradise canyon?

• New York Limestone

• Purple Sandstone

• American Shale

• Kimi Sandstone

Tags

NGSS.MS-ESS1-4