Rocks And Weathering

Question 1

Erosion

Answer 1

Erosion is the removal of rock particles by wind, water, ice or gravity

Question 2

Uniformitarianism

Answer 2

This principle states that the same processes that operated today were the same processes operated in the past

Question 3

Mechanical weathering

Answer 3

The type of weathering in which a rock is physically broken down into smaller and smaller pieces is called mechanical weathering

Question 4

Chemical weathering

Answer 4

The process that breaks down rock through chemical changes is called chemical weathering

Question 5

Oxidation

Answer 5

Oxygen weathers rock through a process called abrasion

Question 6

Permeable

Answer 6

A rock that is full of interconnected air spaces is said to be permeable

Question 7

Ice wedging

Answer 7

1. Water seeps into cracks in the rock
2. Repeated freezing and expanding
3. Ice widens cracks
4. Ice melts

Question 8

Abrasion

Answer 8

The term abrasion refers to the grinding away of rock on rock particles carried by water, ice, wind, and gravity

Question 9

Weathering

Answer 9

Weathering is the process that breaks down rock and other substances on earths surfaces