Physical Weathering
What is Physical weathering?
Physical weathering is the type of weathering in which rock is physically broken into smaller pieces.
What is chemical weathering?
Chemical weathering is the process that breaks down rock through chemical changes.
What are the two things that affect the rate of weathering?
The two things that effect the rate of weathering is the type of rock and climate.
what is weathering?
Weathering is the process that breaks down rock and other substances.
What are two examples of Mechanical Weathering?
A piece of ice freezing and expanding in cracks, causing the rock to break into large pieces.
A tree root growing in cracks of a side walk, expanding and causing damage to the cement.
What is an example of Chemical Weathering?
A chain on a bike has been left out in the rain for months, resulting in rust.
how does the type of rock affect weathering?
It affects it because the minerals that make up a rock determine how fast it weathers and dissolves. Also permeability is a very important factor because a permeable rock has tiny holes that allow water to seep through and make it dissolve easier.
What are the two types of weathering?
The two types of weathering are chemical and mechanical weathering.
How does freezing and thawing break a rock?
When ice melts, water seeps in deeper into the cracks, and freezes again. With repeated freezing and thawing the cracks in a rock expand slowly and then the rock breaks off.
What is oxidation?
Oxidation is when oxygen mixes with iron in the presence of water.
How does the climate affect chemical and mechanical weathering?
Chemical and mechanical weathering work faster in hot and wet climates.
What contributes to weathering?
Heat, cold, water, ice, and gases contribute to weathering.
How does plant growth break a rock?
the plant root enter cracks in the rock. As the roots grow, they force the cracks apart. Overtime the roots of the plant can pry open the cracks of the rock.
What is carbonic acid?
Carbonic acid is when carbon dioxide dissolves in water it forms carbonic acid.
if there was a rock at the equator will the weathering be fast or slow? Why?
The weathering will occur faster because the equator has a wet climate.
Weathering is the movement of broken down rock. True or False?
False! Weathering breaks down rock but erosion is the movement of rock.
What is Abrasion?
Abrasion refers to the wearing away of rock by rock particles carried by wind, water, ice, or gravity.
what do oxidation and carbonic acid do?
Oxidation makes rust. Rust makes rock soft and crumbly and gives it a red or brown color. Carbonic acid weathers some kinds of rocks easily such as limestone and marble.
How would the weathering be like in Antartica ?
The weathering will occur very slowly because weathering occurs faster and hot and dry climates like at the equator, but Antartica has a Polar climate so the weathering will be slow.
How is weathering different from erosion?
Erosion wears down and carries away rocks, while weathering breaks down the rock.