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physical science > CH 27.3/.4 > Flashcards

CH 27.3/.4 Flashcards

1
Q

youngest rocks appear on the top while the oldest rock appears on the bottom

A

Principle of superposition

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2
Q

Placing objects in their proper order of time

A

relative dating

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3
Q

a rock unit that can transfer eater through its pore space

A

aquifer

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4
Q

The amount of pore space a material has

A

porosity

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5
Q

assigning an exact age to an organism

A

absolute dating

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6
Q

gaps in rock record during which erosion or or deposition occurred

A

uncomformity

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7
Q

upper boundary of the saturated zone

A

water table

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8
Q

remains of an organism

A

fossil

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9
Q

when water enters the earth and becomes groundwater

A

infiltration

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10
Q

laws of nature act the same today as they did in the past

A

uniformtarianism

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11
Q

what percentage of water on earth is salt

A

97%

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12
Q

what percentage of water on earth is freshwater

A

3%

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13
Q

where is the majority of freshwater found

A

glaciers

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14
Q

where is the smaller percentage of freshwater found

A

lakes and rivers

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15
Q

what is precipitation

A

rain snow sleet and hail

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16
Q

what is runoff

A

water runs off

17
Q

what is infiltration

A

water seeps into the earth and becomes ground water

18
Q

what is transpiration

A

Plants release water vapor in to the sky

19
Q

what is evaporation

A

water becomes water vapor

20
Q

what is condensation

A

water vapor becomes water

21
Q

what is water cycle

A

water goes up as vapor then comes down as precipitation

22
Q

What is an unsaturated zone for groundwater

A

a porous area water passes through

23
Q

what is the saturated zone for groundwater storage

A

beneath the unsaturated zone where water fills porous space

24
Q

what is a water table

A

the upper boundary of the saturated zone

25
Q

what does it mean if sediment is permeable

A

easier to pass through

26
Q

what is the great plains aquifer

A

ogallala

27
Q

how many states does the great plains aquifer go through

A

8 states

28
Q

what are the names of the states that the aquifer runs through

A

South Dakota, Wyoming, Nebraska, Kansas, Colorado, Oklahoma, New mexico, Texas

29
Q

what is an aquitard

A

layer that doesn’t allow water to pass through

30
Q

How are water springs formed

A

water table meets earths surface

31
Q

what is an artesian well

A

a well made in a pressurized aquifer

32
Q

What is a cone of depression

A

where water flows downward towards the well

physical science (8 decks)

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