Chapter 14

Front 1

Weathering

Back 1

Definition of weather: wear away or change the appearance or texture of (something) by long exposure to the air.

Front 2

Mechanical weathering

Back 2

Mechanical weathering is the process of breaking big rocks into little ones. This process usually happens near the surface of the planet. Temperature also affects the land. The cool nights and hot days always cause things to expand and contract. That movement can cause rocks to crack and break apart.

Front 3

Abrasion

Back 3

Definition of abrasion: the process of scraping or wearing away. (noun)

Front 4

Chemical weathering

Back 4

Definition of chemical weathering: the erosion or disintegration of rocks, building materials, etc., caused by chemical reactions (chiefly with water and substances dissolved in it) rather than by mechanical processes. (noun)

Front 5

Oxidation

Back 5

Definition of oxidation: the process or result of oxidizing or being oxidized. (noun, Chemistry)

Front 6

Hydrolysis

Back 6

Definition of hydrolysis: the chemical breakdown of a compound due to reaction with water. (noun, Chemistry)

Front 7

Carbonation

Back 7

In soda, carbonation is created by adding dissolved carbon dioxide and carbonic acid into the liquid. Carbonation is added to soft drinks to give the soft drinks a "bite" to them. Carbonation creates a slightly burning sensation when you drink it, and consumers enjoy this fizzy taste.Carbonation dictionary definition.

Front 8

Acid precipitation

Back 8

Any form of precipitation, including rain, snow, hail, fog, or dew, that is high in acid pollutants, especially sulfuric and nitric acid. Acid precipitation has a pH of less than 5.6 (the normal acidity of unpolluted atmospheric water) and is often less than pH 5.0. Also called acid rain.

Front 9

Differential weathering

Back 9

differential weathering. noun, Geology. 1. the difference in degree of discoloration, disintegration, etc., of rocks of different kinds exposed to the same environment.