Forms of Erosion

Chemical reaction of Oxygen with other substances. 

• Weathering
• Erosion
• Oxidation
• Transported soil

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A fan shaped area of land built up by sediment at the mouth of a river

• landform

• glacier

• sediment

• delta

Tags

NGSS.MS-ESS2-4

mechanical scraping or impact of the surface of a rock and moving particles by wind, water, gravity, etc. (mechanical weathering)

• freezing and thawing

• animal actions

• abrasion

• plant growth

Tags

NGSS.MS-ESS2-2

plants roots grow into cracks in rocks. As the roots grow, cracks are pried open making them larger and weakening the rock (mechanical weathering)

• freezing and thawing

• animal actions

• abrasion

• plant growth

burrowing animals break down sediments and rock in the soil (mechanical weathering)

• freezing and thawing

• animal actions

• abrasion

• plant growth

What pollutants (gases) mix with rain. It causes rapid chemical weathering (a form of chemical weathering)

• acid rain

• living organisms

• oxygen

• carbon dioxide

Tags

NGSS.MS-PS1-2

when the surface of a rock erodes, pressure is reduced; the rock cracks and flakes (mechanical weathering)

• release of pressure

• animal actions

• abrasion

• plant growth

Tags

NGSS.MS-ESS2-2

Repeated daily heating and cooling of rock causes expansion; cooling causes contraction, different minerals expand and contract at different rates causing the rock to split, this is weathering by __________.

• abrasion

• exfoliation from uplifting

• thermal expansion

• plant action

• animal action

Tags

NGSS.MS-ESS2-2

During chemical weathering, what can happen to the type of rock that has undergone chemical weathering?

• a new rock is produced that is larger than the original rock
• a new rock is produced that is the same as the original rock
• a new rock is produced that is different from the original rock 
• no new rock is created - it is just smaller in size

Tags

NGSS.MS-ESS2-2

What is mechanical weathering?

• Process through which rocks are physically broken into smaller pieces.
• Rocks are broken down through chemical changes.
• Rocks are worn away from acid in plant roots.
• Rocks broken down by machinery.

Tags

NGSS.MS-ESS2-2