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Science Weathering And Erosion > Ellie > Flashcards

Ellie Flashcards

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1
Q

Forces of Chemical weathering

A

Water, oxygen ,carbon dioxide, living organisms, acid rain

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2
Q

Forces of Mechanical weathering

A

Freezing and thawing, release of pressure, abrasion, actions of animals, plant growth

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3
Q

Ice wedging

A

First water seeps into cracks, it freezes and expands, ice widens cracks, water thaws
and repeats the process

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4
Q

Abrasion

A

The grinding away of rock by rock particles carried by water, ice, wind, or gravity
Mechanical

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5
Q

Mechanical weathering

A

Rock is physically broken down into smaller pieces

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6
Q

Chemical weathering

A

The process that breaks down rock through chemical changes

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7
Q

Water

A

Is the most important cause of chemical weathering

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8
Q

Oxygen

A

Causes iron to Rust

Chemical

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9
Q

Carbon dioxide

A

Forms carbonic acid

Chemical

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10
Q

Living organisms

A

Lichens Are one example

Chemical

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11
Q

Acid rain

A

Caused by pollution

Chemical

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12
Q

Oxidation

A

Oxygen weathers rock through this process

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13
Q

Two types of rock that are easily weather by carbonic acid

A

Limestone and marble

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14
Q

How do plants dissolve rock

A

It’s roots push into the cracks in the rock and it produces weak acids that slowly dissolve rock around the roots

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15
Q

Climate

A

The most important factors that determine the rate of weathering are type of rock and this

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16
Q

Permeable

A

A rock that is full of tiny, connected air spaces

17
Q

Erosion

A

Is the movement of rock particles by wind, water, ice, or gravity

18
Q

Weathering

A

The process that breaks down rock and other materials at earths surface

19
Q

Plant growth

A

Roots pry apart cracks in rock

Mechanical

20
Q

Animal actions

A

Burrowing in the ground breaks rock

Mechanical

21
Q

Carbonic acid

A

Weathers marble and limestone

Chemical

22
Q

Freezing and thawing

A

Brakes rock by ice wedging

Mechanical

Science Weathering And Erosion (1 decks)

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