W.E.D. and rock cycle Flashcards

1
Q

Rock cycle

A

continuous series of events when rock is transformed from one type to another

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2
Q

Weathering

A

breakdown of rock due to rain, wind, ice, sunlight and plants

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3
Q

Erosion

A

transport of fragments of rock by water, wind, ice or gravity

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4
Q

Deposition

A

natural process of adding transported sediments to a landform

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5
Q

Lithification

A

compaction and cementation of sediment into rock

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6
Q

sedimentary rock

A

rock formed from sediments

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7
Q

Metamorphic Rock

A

rock changed by heat and pressure

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8
Q

intrusive igneous rock

A

rock formed from cooling of molten rock BELOW Earth’s surface. Large Crystals

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9
Q

extrusive igneous rock

A

rock formed from cooling of molten rock ON Earth’s surface **No crystals

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10
Q

magma

A

molten rock below Earths surface

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11
Q

lava

A

molten rock that erupted onto Earth’s surface

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12
Q

sediment

A

rock fragments that have been broken down due to weathering

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13
Q

What material are most fossils preserved in?

A

Sedimentary rock

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14
Q

Law of super position

A

when rocks are stacked in layers, newer rock will be on the bottom and newest rocks on the top

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15
Q

3 things fossils can tell us about the past

A

1.) what an organsim looked like
2.) what living things were existing during a certain time period
3.)what a living thing ate

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