Erosion

What type of changes does erosion cause?

• Physical changes

• Chemical changes

• Electrical changes

• Magnetic changes

Tags

NGSS.MS-ESS2-2

Erosion occurs when natural forces alter the landscape. What does it mean to alter a landscape?

• To blow dust around

• To change what land looks like

• To deposit silt at the mouth of a river

• To create a floodplain

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Which term BEST describes the rate at which glacial erosion takes place?

• Quick

• Short

• Slow

• Sudden

Tags

NGSS.MS-ESS2-2

How do sandy beaches form?

• Waves pounding pebbles int smaller and smaller pieces

• Wind eroding pebbles into smaller pieces

• Water freezing and thawing the cracks of pebbles

• Rain wearing away rocks into smaller and smaller pieces

Tags

NGSS.MS-ESS2-2

Which of the following features would be most affected by weathering?

• A

• B

• C

• D

Tags

NGSS.MS-ESS2-2

How would a sandblasted rock differ from a rock that hasn't been sandblasted?

• A sandblasted rock would be bigger

• A sandblasted rock would be smoother in shape and less jagged

• A sandblasted rock would be composed of volcanic material

• A sandblasted rock would be covered by water

Why is it hard to see glacial erosion in action?

• Because glaciers are so big

• Because light from glaciers refracts too much

• Because glaciers move very, very slowly

• Because glacial erosion is usually very subtle

Tags

NGSS.MS-ESS2-2

What do floodplains, sandbars, and river deltas have in common?

• They've all been formed by water erosion

• They've all been formed by glacial erosion

• They've all been formed by wind erosion

• They've all been formed by sandblasting

Tags

NGSS.MS-ESS2-2

Based on the information presented in the video, what would be a simple way to prevent erosion?

• Blocking the wind

• Planting trees

• Preventing rainfall

• Preventing the flow of rivers

Tags

NGSS.MS-ESS3-3

Based on the information presented in the video, what can you infer about the type of erosion that formed the Grand Canyon?

• WInd erosion

• Water erosion

• Sandblasting

• Glacial erosion

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4