Weathering
Erosion
Quick Changes to Earth's Surface
Vocabulary 1
Vocabulary 2
100

Define weathering

What is when freezing and thawing, plants, wind, and pressure cause rocks to break into smaller pieces?

100

The largest agent of erosion.

What is water?

100
What is gravity and how does it affect the land?
What is a pulling force between two objects? Where the Earth slopes or is angled, gravity causes rocks to move from a higher place to a lower place.
100
The natural processes that breaks down rocks without transporting them?
What is weathering?
100
The pulling force between two objects.
What is gravity?
200

Two examples of CHEMICAL WEATHERING

What is oxidation, decaying plant roots, water dissolving limestone?

200
Define what affects erosion.
What are: 1. Some soils and rocks erode faster than others because of their hardness 2. The size of the rock will also affect its erosion 3. The strength of the wind or water will affect the speed of erosion, and 4. plants can affect how quickly soil erodes?
200
How do landslides change the land quickly?
What is they move large amounts of rocks, soil, and other material rapidly?
200

The dropping off of weathered rock at the end of erosion.

What is deposition?

200

The term for rain mixing with iron to cause rust.

What is oxidation?

300

1.Two examples of MECHANICAL WEATHERING

1. What is plant roots breaking rocks, ice wedging, water dripping, abrasion (sand/dirt rubbing on rocks)?

300
How can running water and waves change land?
What are: 1. Running water cut away land and carry the sediment away. 2. Waves carry sand from one place to another, and 3. Pounding waves against rock can wear the rock down or break it?
300

How do Earthquakes change the land quickly?

What is earthquakes cause a sudden shift in the land? The land can split moving large amounts of rock. Rocks, soil, and other material can be moved quickly during an earthquake.

300

The transportation of weathered rocks from one place to another. 

 What is erosion? 

300

 A mountain that builds up around an opening in Earth's crust, such as Kilauea in Hawaii. 

 What is a volcano? 

400

Define MECHANICAL weathering.

 What is breaking down causes the rocks to change in size and shape?

400
How can wind change land?
What is wind can act as a sandblaster? It causes small bits of rock to be broken off and carried away. Wind can also wear down rock and change the rocks shape and size.
400
How do Volcanoes change the land quickly?
What is a volcanic eruption can change the land suddenly? Magma is released and lava and ash spreads and builds up on the land.
400

 The processes that change the size and shape of rocks without changing them chemically.

1. What is physical/mechanical weathering? 

400

 A sudden shaking or trembling in Earth's crust. 

 What is an Earthquake? 

500
Define chemical weathering and give two examples.
What is oxygen, acids, and carbon dioxide can react with the minerals in rock and break them down? An example of chemical weathering is when oxygen in air dissolves in water it can become rust. Rust can get on or in a rock and cause it to break apart. Another example of chemical weathering is when carbonic acid can cause a limestone cave to form.
500
How can ice change land?
What is the ice at the bottom and sides of glaciers (thick sheets of ice) freezes onto rock? As the glacier continues to move, it can tear out the rock and move it. Rocks as big as a house can be moved by a glacier.
500

Define CHEMICAL WEATHERING.

What is when agents of weathering change the chemical composition of things?

500

The process in which rocks break down due to chemical changes to the minerals in rocks.

What is chemical weathering

500

A flow of water over the banks of a body of water and across land.

What is a flood?

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