Weathering and Erosion Review

What is physical weathering?

• The biological actions of living things breaking down rocks

• The change in a rock's composition due to chemical reactions

• Physical forces that break rock into smaller pieces called sediments

• The movement of eroded materials from one place to another

Which of the following is NOT a type of physical weathering?

• Temperature changes causing expansion and contraction of rocks

• Abrasion from rocks and sediment grinding against each other

• Plants' roots growing into cracks in rocks

• Oxygen combining with minerals to create oxides

What is frost wedging?

• When water gets into cracks of a rock and freezes, causing expansion

• When rocks are broken down by the impact of falling water

• When plants' roots grow into rock cracks and break the rock apart

• When rocks are smoothed by wind or water

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

What is erosion?

• The process of soil and rock being deposited in new locations

• The movement of small pieces of landforms to different locations by ice, water, wind, or gravity

• The destruction of land due to human activities

• The process of water evaporating from the earth's surface

Tags

NGSS.MS-ESS2-2

Which of the following is NOT a type of erosion?

• Water erosion

• Ice erosion

• Wind erosion

• Fire erosion

What can vegetation act as to prevent soil from washing away?

• A nutrient provider

• A barrier against erosion

• A source of erosion

• A water absorber

Tags

NGSS.MS-LS2-3

Small pieces of rock that have been weathered from a larger rock are known as...

• sand

• sediment

• soil

What is sediment?

• the process of rocks being broken down and carried away
• bits of rock, sand, and silt caused by the weathering of rocks
• the top layer of the soil
• decaying plant or animal material 

Which of these is an example of erosion?

• Light shinning onto a mountain

• Rain breaking down rock

• Wind blowing away sediment

• All of the above

Tags

NGSS.MS-ESS2-2

How do plants weather rocks?

• during photosynthesis
• when roots grow into cracks of rocks and expand the rock
• when the plant moves water from the roots to the leaves
• Plants don't weather rocks