Weathering, Erosion, & Deposition

Slides:



Advertisements
Similar presentations
JEOPARDY Weathering and Erosion. AAAA BBBB CCCC DDDD EEEE
Advertisements

Weathering, Erosion, Deposition, and Soil
Weathering and Erosion
Weathering and Erosion Weathering is… When rocks are broken apart and create sediments.
Weathering and Erosion
Weathering, Erosion and Natural Catastrophes
2/8 Warm Up SWOD: deposition pg. G 67/index. Changes to the Earth’s surface Weathering Breaks down rocks into smaller pieces 2 types Erosion Removes the.
Weathering The process of breaking down of rocks into smaller and smaller pieces of rock. These small pieces are known as sediment. Sediment breaks down.
Type of mechanical weathering where rocks are worn away by contact with OTHER rocks. Plants Abrasion Ice wedging Animals.
Constructive and Destructive Forces
Weathering and Erosion. Weathering  The processes that break down rock into smaller pieces.
THE ROCK CYCLE Important terms. Weathering The breakdown of rock into smaller pieces The breakdown of rock into smaller pieces There are two big categories.
Weathering Physical/ Mechanical Weathering The breakdown of the materials of Earth’s crust into smaller pieces. Process by which rocks are broken down.
Chapters 4 & 5 Weathering and Erosion Weathering Weathering is the breaking down of rocks and other materials 2 types of weathering –Mechanical –Chemical.
Weathering and Erosion Unit 3 Chapter 7. Weathering – the process by which rocks are broken up into smaller pieces by the action of water, the atmosphere.
CHANGING EARTH’S SURFACE Weathering, Erosion, and Deposition & Mass Movement.
Essential Question How does weathering and erosion impact earth’s surface features?
Weathering, Erosion, and Deposition
Weathering 01/05/ pgs IN: How is sediment/soil formed?
WEATHERING AND EROSION CHAPTERS 14 & 18. WEATHERING WATCH BRAIN POP WATCH BRAIN POP The breaking down of rock 2 types: mechanical and chemical.
Forces That Shape Earth’s Surface 6.E.2.3 Explain how the formation of soil is related to the parent rock type and the environment in which it develops.
Weathering and Erosion. What is Weathering? Weathering is the chemical and physical processes that break down rock on Earth’s surface.
WEATHERING, EROSION, & DEPOSITION
Weathering and Erosion
Mechanical weathering Ice-wedging, freeze thaw Chemical weathering
Weathering and Erosion
Weathering and Erosion
Ch.12 Erosion and Deposition
External Forces.
External Forces Shaping the Earth
T/F Wind, water, ice, and gravity continually shape Earth’s surface.
1. What are the two main types of weathering?
Erosion, Deposition AND SOIL FORMATION
YehliuTaiwan-HoneycombWeathering
3/12 – Today you have a test! Get out your notes and study!
Weathering October 2017.
Weathering.
Weathering All of the processes that break rock into smaller pieces
Grab the sheet from the front and the brochure
Weathering and Erosion
Physical Weathering How does physical weathering affect rocks?
Weathering and Erosion
Weathering and Erosion Unit 4 Study Guide
Deposition, Weathering, and Erosion
Weathering and Erosion
Changes to the Earth’s surface
Weathering: Chemical Weathering: the breakdown of rock into sediments
Erosion and Deposition
Weathering and Erosion
Weathering and Erosion
Weathering, Erosion, and Deposition
Erosion and Deposition
Weathering and Erosion
Weathering and Erosion
Mechanical weathering Ice-wedging, freeze thaw Chemical weathering
1. What are the two main types of weathering?
Weathering, Erosion, Deposition & Landscapes
Weathering Erosion Deposition -breaks down the Earth - moves the Earth – drops off, to build the Earth How does weathering, erosion, & deposition act in.
Weathering October 2016.
Mechanical weathering Ice-wedging, freeze thaw Chemical weathering
YehliuTaiwan-HoneycombWeathering
YehliuTaiwan-HoneycombWeathering
YehliuTaiwan-HoneycombWeathering
YehliuTaiwan-HoneycombWeathering
Weathering and Erosion pull out your HW
Weathering.
Weathering.
Weathering.
What process forms sediments?
Forces That Shape Earth’s Surface
Presentation transcript:

Weathering, Erosion, & Deposition

Weathering is.. Weathering is the breaking down of rocks into smaller and smaller pieces. There are two types of weathering: Mechanical Weathering Chemical Weathering

Mechanical Weathering Mechanical weathering is the breakdown of rock by physical means. Some examples are: Ice (Ice wedging/frost action is a series of freezing and thawing) Abrasion (wearing away of rock by the mechanical action of other rocks) Wind, Water, and Gravity are different forms of abrasion.

Chemical Weathering Chemical Weathering is when rocks break down as a result of chemical reactions causing the composition of rocks to change. Some examples are Acid (found in water, precipitation or lichens) Air (Oxygen reacts with iron in a process called Oxidation which forms Rust).

Rate of Weathering Some rocks and minerals are more resistant to weathering, while others experience weathering more quickly. Weathering happens more quickly in hot and wet climates. Climate and rock type are the most important factors in the rate of weathering. Weathering happens more quickly when there is more surface area. For example, a pile of pebbles will weather more quickly than one large boulder.

Erosion Erosion is the process through which soil and sediment are transported from one place to another. Erosion is primarily responsible for the formation of river systems.

Wind Erosion Wind erosion occurs when wind blows over sand. The sand is deposited when the wind hits an obstacle. The process of wind erosion is called deflation. The movement of wind erosion is a bouncing movement called saltation.

Wave Erosion & Glacial Erosion Wave erosion occurs along shorelines. Glacial erosion is the mass movement of glaciers.

Erosion and Gravity Mass movement is the movement of material down a slope through gravity. Examples: Landslide, Mudslide, Creep, Slump Mass movement can occur quickly (landslide, rock falls) or slowly (creep).

Preventing Erosion Soil is valuable because living things need it and fertile soil takes a long time to create. To prevent erosion of valuable soil, we can plant plants to help hold the soil in place. If plants are removed, a situation like the dust bowl in the 1930’s could take place. Farmers will also leave the stalks of previous year’s crops to help hold the soil in place.

Deposition Deposition is the process through which soil and sediment is dropped off or deposited. Two examples of where this occurs are on beaches and at river deltas.