Weathering Soil Mass Movement Chemical Weathering Mechanical Weathering

100

What are chemical and mechanical weathering?
These are the two main types of weathering.

100

What is the bedrock?
The bottom layer of soil.

100

What is a landslide?
The mass movement that occurs the fastest.

100

What is chemical weathering ?
Transformation of rock into one rock or more new compounds .

100

What are release of pressure, water, wind, ice, abrasion, freezing/thawing, and actions of animals?
Two types of mechanical weathering.

200

What is ice?
Weathering is the break down of Earth's surface by wind, water, or _________.

200

What is topsoil?
The A horizon is also known as this.

200

What is creep?
The type of mass movement known for "bending" trees.

200

What is rust?
The product of oxidation (comination of iron and oxygen in the presence of water).

200

Answers will vary.
Name one way in which water can cause mechanical weathering.

300

What is mechanical weathering?
This type of weathering can be described as the break down of rocks into smaller pieces.

300

What is humus?
The dark-colored substance that forms as plant and animal remains decay.

300

What are landslide, mudflow, slump, and creep?
The 4 main types of mass movement.

300

What is water?
The most important cause of chemical weathering.

300

What is ice wedging?
The mechanical breakup of rock caused by the expansion of freezing water in cracks and crevices (Freeze -Thaw Cycle )

400

What is mechanical weathering?
Roots splitting open a crack in the ground is an example of which type of weathering?

400

What is contour plowing?
The technique used when farmers plow their fields along the curves of a slope.

400

What is gravity?
This is the force behind all mass movement.

400

What is acid rain?
The rain that, over time, can chemically weather a statue.

400

What is water.
The Grand Canyon is an example of weathering by this agent over a great period of time.

500

What is chemical weathering?
Transformation of rock into one or more new minerals.

500

What are decomposers?
Organisms that break the remains of dead organisms into smaller pieces and digest them with chemicals.

500

What is slump?
In this type of mass movement, the mass of soil/rock moves downhill in one large mass.

500

What are acids?
Lichens- plantlike organisms that grow on rocks- produce weak _________ that chemically weather rock.

500

What is abrasion?
This refers to the grinding away of rock by rock particles carried by water, ice, wind, or gravity.

Weathering , Soil and Mass Movement

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