Let’s Play Weathering Wind Water Ice Gravity.

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Transcript of Let’s Play Weathering Wind Water Ice Gravity.

Page 1: Let’s Play Weathering Wind Water Ice Gravity.
Page 2: Let’s Play Weathering Wind Water Ice Gravity.

Let’s Play

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WeatheringWeathering

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WindWind

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WaterWater

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IceIce

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GravityGravity

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What’s What’s Left?Left?

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Weathering

Wind Water Ice GravityWhat’s Left?

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The breaking down or cracking

of rock.

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Weathering

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The breaking down of rock by

physical processes

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Mechanical Weathering

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Changing a rock’s composition or changing a rock

by dissolving

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Chemical Weathering

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Two examples of Mechanical weathering

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Ice wedging, plants & animals, falling from cliffs

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Two examples of Chemical

Weathering

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Natural acids, plant acids, acid rain, dissolving

limestone

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The major agent of erosion in desert areas.

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Wind

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Rows of trees planted along fields to slow down SOIL erosion

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Windbreaks

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The type of wind erosion where

smaller sediments are blown away.

Large sediments are left behind.

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Deflation

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Nature’s sandblasting of

rocks…

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Abrasion

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One example of landform created

by wind DEPOSITION

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Dunes, Loess

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The grand canyon formed as a result

of this

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Water erosion

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A type of water erosion that occurs over large, flat areas

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Sheet erosion

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The reason fertile soil is found at the mouth of a

river

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Nutrients are deposited along

with sediments as a river slows

down

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One reason why farming pollutes

water

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Runoff of pesticides and

fertilizers when it rains

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Compare and contrast an

alluvial fan and a delta

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Alluvial fan: deposited by a river in a valley delta: deposited by a river at its

mouth.

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A large, frozen river that moves

under its own weight

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glacier

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Gouges left in rock by glaciers are the result of

this process

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plucking

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Bowl-like depressions formed at the point

where glaciers begin

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Cirques

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Sharp ridges left behind when two

side-by-side glaciers erode a

mountain

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aretes

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A valley formed when a glacier erodes a moutain

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U-shape valley

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Slump, creep, rock falls, and mud slides are all examples of

this

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Mass movement

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The name of the erosion by gravity that causes tree trunks to bend

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creep

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The cause of all mass movement

on Earth

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gravity

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More material is moved over time by _______ mass

movement

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Slow

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Two methods of making steep slopes safer

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Terracing, planting

vegetation, using concrete barriers

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A _______ connects areas of equal elevation on

a topographic map.

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Contour line

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Lines close together on a map indicate this

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Steep slope

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Line far apart on a topographical

map indicate this

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Gentle / gradual slope

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A topographic map with a SMALL contour interval indicates this

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A relatively flat area

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Look at the map on the board. Tell the

contour interval and height of the hill.

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Contour interval: 25 m

Height of hill: 102-125 m.

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FinalFinalJeopardyJeopardy

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LandformsLandforms

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Discuss any TWO landforms on

Earth created as a result of

DEPOSITION of sediment.

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Dunes, loess, eskers, moraine

deposits, beaches, sand bar, outwash

deposits, etc.

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DailyDouble!


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