Chapter 27.3 and 27.4 Flashcards

1
Q

the process by which water enters Earth and becomes groundwater below the surface

A

Infiltration

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2
Q

the upper boundary of the saturated zone is called

A

Water table

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3
Q

a rock unit that can transfer water through its pore space is called

A

Aquifer

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4
Q

the percentage of the material’s total volume that is pore space

A

Porosity

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5
Q

the process of assigning an exact numerical age to an organism, an object, or an event

A

Absolute dating

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6
Q

the process of placing objects or events in their proper order in time

A

Relative dating

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7
Q

states that the laws nature operate today as they have in the past

A

Uniformitarianism

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8
Q

in an undisturbed sequence of a sedimentary rock layers, the youngest rocks will be at the top and the oldest rocks will be at the bottom

A

Principle of superposition

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9
Q

gaps in the rock record was absent

A

Unconformities

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10
Q

the remains or traces of organisms found in the geologic rock record are called

A

Fossils

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11
Q

What percentage of water on earth is salt water

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

in glaciers

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14
Q

Where is the smaller percentage of freshwater found

A

found in lakes, rivers, and stored as ground water

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15
Q

What is precipitation

A

when water vapor cools and condenses (rain, snow, sleet, hail)

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16
Q

what is runoff

A

water running off the land surface

17
Q

What is infiltration

A

the process by which water enters Earth and becomes groundwater

18
Q

What is transpiration

A

when plants release water vapor into the atmosphere through their leaves

19
Q

What is evaporation

A

when water enters the atmosphere as water vapor

20
Q

What is condensation

A

when water vapor collide with other water vapor molecules to form water droplets

21
Q

What is the water cycle

A

water on the land that enters the atmosphere and then comes back to the land

22
Q

What is an unsaturated zone for groundwater storage

A

a porous area where water easily passes through

23
Q

What is a saturated zone for groundwater storage

A

where water completely fills the pore space (beneath the unsaturated zone)

24
Q

What is a water table

A

the upper boundary of the saturated zone

25
What does it mean if sediment is permeable
the material is the easier water can infiltrate through the ground
26
What is an aquifer
a rock unit that can transfer water through its pore space
27
What is the name of the Great Plains aquifer
Ogallala aquifer
28
how many states does the Great Plains aquifer run through
8 states
29
What are the names of the states that the Great Plains aquifer runs through
South Dakota, Wyoming, Colorado, New Mexico, Kansas, Nebraska, Oklahoma, and Texas
30
What is an aquitard
where water is confined
31
How are water springs formed
where a water table naturally meets Earths surface
32
what is an artesian well
wells drilled into pressurized aquifers
33
what is a cone of depression
the direction that the water flows towards the well