Weathering and erosion

What is physical weathering?

• the process by which Earth's surface is broken down into smaller pieces

• the process when water falls down from the sky

• the process when water is collected

• the process of things moving from one place to another

Tags

NGSS.MS-ESS2-2

What is erosion?

• the process by which Earth's surface is broken down into smaller pieces

• the process of moving things from one place to another

• the process of water falling from he sky

• the process of water collecting

Tags

NGSS.MS-ESS2-2

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

• slow

• sudden

• very fast

How do sandy beaches form?

• waves pounding pebbles into 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

Why is it hard to see glacial erosion in action?

• because they are so big

• because light from glaciers reflects too much

• because glaciers move very, very slowly

• because glacier erosion is very subtle

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

• they are all formed from water erosion

• they're all formed by glacial erosion

• they've all been formed from wind erosion

• they've all been formed by sand blasting

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

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

• blocking the wind

• planting trees

• preventing rainfall

• preventing the flow of rivers

Tags

NGSS.MS-ESS2-2

How might a weathered mountain appear different from an unweathered mountain?

• the weathered mountain would be taller

• the weathered mountain would appear rounder in shape

• the weathered mountain would appear more jagged

• the weathered mountain would have fewer trees

Tags

NGSS.MS-ESS2-2