Unit 8 Earth Science (Weathering) Flashcards

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1
Q

`Weathering

A

the breaking down of rocks on earth’s surface into smaller peices

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2
Q

Erosion

A

the process of morving sediment from one place to another

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3
Q

Deposition

A

the dropping or settling of eroded materials

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4
Q

Sediment

A

sand bits of rocks, fossils, and other matter carried and deposited by water, wind, or ice

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5
Q

Delta

A

a landform created by the long term depositing of sediment

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6
Q

Landform

A

a natural land shape or feature

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7
Q

Sand Dune

A

they form when wind carries and depostites a lot of sand in an area

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8
Q

Causes of Weathering

A
  1. Gravity
    2.Flowing Water
    3.Tree Roots
  2. Chemicals in Rain (Pollution)
  3. Sand Blowing
  4. Animals’ Digging
  5. Ice Wedging
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9
Q

Crust

A

The thin outer layer of earth, including dry land and th eocean floor

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10
Q

Core

A

The layer of earth extending form erth’s center to the matel; mostly metalic metal and iron

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11
Q

Mantle

A

The thick layer of earth beneath the crust

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12
Q

Plate Tectonics

A

The theory that Earth’s crust is dividedminto plates that are always moving

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13
Q

Fault

A

A break in earth’s crust where rocks on one side moves in relation to rock on the other side

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14
Q

Earthquake

A

A shaking of earth’s surface that can cause land to rise and fall

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15
Q

Epicenter

A

The point on earth’s surface directly above the focus of an earthquake

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16
Q

Volcano

A

a place where hot gases, smoke, and melted rock come out of the ground onto earth’s surface