Weathering and Erosion Chapter 3 Introduction 8 main

Weathering and Erosion Chapter 3: Introduction

8 main terms to learn 1. Weathering 2. Erosion 3. Denudation 4. Mechanical weathering 5. Chemical weathering 6. Transport 7. Deposition 8. Agents of weathering

Weathering The breaking down of rocks that lie exposed to the weather.

Erosion The breaking down and movement of rock pieces by water, ice and air.

Denudation/Denuded Rocks are WORN DOWN by the weather.

Mechanical weathering is the breaking down of rocks into smaller pieces usually by frost, the temperature changing or the movement of plants or animals.

Chemical Weathering Rocks are chemically changed or decomposed by the rain.

Transport The movement of the broken pieces of rock by wind, ice or water.

Deposition The broken pieces of rock are dropped in other areas.

Agents of weathering

Agents of weathering are things that cause rocks to break down: • Frost • Temperature changes • Plants • Animals • Rain

8 main terms explained 1. Weathering 2. Erosion 3. Denudation 4. Mechanical weathering 5. Chemical weathering 6. Transport 7. Deposition 8. Agents of weathering

8 TERMS The breaking down of rocks that lie exposed to the weather. The breaking down and movement of rock pieces by water, ice and air Rocks are WORN DOWN by the weather. The breaking down of rocks into smaller pieces usually by frost, the temperature changing or the movement of plants or animals. Rocks are chemically changed or decomposed by the rain. The movement of the broken pieces of rock by wind, ice or water The broken pieces of rock are dropped in other areas. Things that cause rocks to break down: • Frost • Temperature changes • Plants • Animals • Rain