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7th Grade Core Class 2023-2024 > Unit 8 > Flashcards

Unit 8 Flashcards

1
Q

An area of land from which all runoff drains, or “sheds” to the same river, lake, or other body of water.

A

Watershed

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2
Q

Water above Earth’s surface.

A

Surface water

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3
Q

Glaciers, rivers, streams, lakes, etc.

A

Surface water

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4
Q

Water that is found in the spaces between rock particles below Earth’s surface.

A

Groundwater

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5
Q

A measure of how easily water can flow through an aquifer.

A

Permeability

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6
Q

Rate of how fast water goes through an aquifer or rock pores.

A

Permeability

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7
Q

The percentage of the rock that is composed of open spaces or pores.

A

Porosity

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8
Q

Gravel with big gaps

A

High porosity, high permeability

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9
Q

Best water resources type for aquifers

A

High porosity, low permeability

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10
Q

Clay

A

high porosity, low permeability

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11
Q

water that moves across the Earth’s surface - does not go into the ground

A

Runoff

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12
Q

Rain & Slope (gravity)

A

Things that cause runoff

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13
Q

The plant roots are no longer holding the soil in place and this could increase runoff and soil erosion.

A

Removing native vegetation plants

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14
Q

? prevents the infiltration of water into the groundwater supplies… depletes water in our aquifer that humans use for drinking and to run their houses.

A

Cement and asphalt covering the ground.

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15
Q

increases runoff and flooding.

A

Cement and asphalt covering the ground

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16
Q

The growing population may use more water,

A

decreasing the water supply in the area.

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17
Q

The growing population

A

increase the
pollution in the water sources.

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18
Q

harder to control

A

non-point source pollution

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19
Q

/….. to the spaces betweeen the particles

A

Porosity refers

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20
Q

_______ are those that have high porosity (to store lots of water) and low
permeability (so it can hold the water).

A

Best aquifers

21
Q

Nitrates come from MANY farmlands, increases algae and plants, killing everything one way or another.

A

Eutrophication

22
Q

____occurs when there is one specific source causing the problem (easier to control)

A

Point-source pollution

23
Q

A body of rock or sediment that stores groundwater and allows the flow of groundwater.

A

Aquifer

24
Q

In the Saturated zone

A

Aquifer

25
Q

Below the saturated zone

A

Inpermeabile rock

26
Q

The path that a stream follows.

A

Channel

27
Q

An increase in the amount of nutrients, such as nitrates, in a marine or aquatic ecosystem.

A

Eutrophication

28
Q

The process by which surface water seeps into the ground

A

Infiltration

29
Q

Water that moves down through the ground layers

A

Leaching

30
Q

Pollution that comes from many sources rather than from a single specific site

A

Nonpoint-source Pollution

31
Q

Pollution that comes from a specific site

A

Point-source Pollution

32
Q

Suitable for drinking.

A

Potable

33
Q

97.5

A

Ocean water!

34
Q

2.5%

A

Freshwater, etc.

35
Q

An artificial body of water that usually forms behind a dam.

A

Reservoir

36
Q

A temperature increase in a body of water that is caused by human activity and that has a harmful effect on water quality and on the ability of that body of water to support life.

A

Thermal Pollution

37
Q

Factories use water from lakes, etc to _____ machines, causing thermal pollution

A

water or cool down

38
Q

A stream that flows into a lake or into a larger stream.

A

Tributary

39
Q

: Waste matter or other material that is introduced into water and that is harmful to organisms that live in, drink, or are exposed to the water.

A

Water Pollution

40
Q

The area of land that is drained by a river system.

A

Watershed

41
Q

The boundary between drainage areas (watersheds) that have streams that flow in opposite directions.

A

Divide

42
Q

The upper surface of underground water; the upper boundary of the zone of saturation.

A

water table

43
Q

occurs when live or dead organisms are added to water supplies.

A

biological Pollution

44
Q

Chemicals are added to a water source often from industry

A

Chemical pollution

45
Q

water moves
through the ground very slowly.

A

low permeability

46
Q

water moves through the ground very quickly

A

high permeability

47
Q

rock particles are closed and squeezed together with little to no space

A

low porosity

48
Q

rock particles that are connected with lots of space

A

high porosity.

49
Q

top of the water aquifer

A

water table

7th Grade Core Class 2023-2024 (13 decks)

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