Weathering, Erosion & Soil

Question 0

Mechanical Weathering

Answer 0

Breaking up of rock by physical forces, such as the action of wind and moving water.

Question 1

Weathering

Answer 1

process by which water, wind, and ice wear down rocks and other exposed surfaces; includes chemical and mechanical weathering.

Question 2

Ice Wedging

Answer 2

breaking apart of rock when water in cracks turns to ice and expands

Question 3

Abrasion

Answer 3

wearing away by scraping or rubbing; often refers to a kind of weathering.

Question 4

chemical weathering

Answer 4

wearing away of rocks by chemical processes, such as oxidation or dissolving.

Question 5

erosion

Answer 5

movement of sediment by wind, water, ice, or gravity.

Question 6

deposition

Answer 6

process by which wind, water, and gravity leave eroded sediments in new locations.

Question 7

delta

Answer 7

a fan-shaped sediment deposit formed at the mouth of a river.

Question 8

glacier

Answer 8

a large mass of ice and snow that exists year-round and is involved in erosion.

Question 9

soil

Answer 9

mixture of rock, mineral particles, and organic matter that forms at Earth’s surface

Question 10

humus

Answer 10

material in the soil that formed from decayed plants and animals.

Question 11

horizon

Answer 11

layers of soil with distinct properties