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science > SOL science prep 6th grade water unit > Flashcards

SOL science prep 6th grade water unit Flashcards

1
Q

does the amount of water in the Earth ever change?

A

no

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2
Q

______ is the most common substance on Earth.

A

Water

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3
Q

_____% of all water is in the oceans (saltwater)

A

97%

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4
Q

_____% of all water is in the frozen icecaps (freshwater).

A

2%

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5
Q

_____% of all water is located in rivers, lakes, soil, ground and atmosphere (freshwater).

A

1%

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6
Q

What is the only substance on Earth that exists naturally in solid, liquid, and gas form?

A

water

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7
Q

Water freezes at ____ degrees Fahrenheit and ____ degrees Celsius.

A

32, 0

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8
Q

Water boils at _____degrees Fahrenheit and _____degrees Celsius.

A

212, 200

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9
Q

Gas to solid

A

deposition (removing heat)

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10
Q

gas to liquid

A

condensation (removing heat)

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11
Q

liquid to solid

A

freezing (removing heat)

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12
Q

solid to gas

A

sublimation (add heat)

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13
Q

solid to liquid

A

melting (add heat)

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14
Q

liquid to gas

A

evaporation (add heat)

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15
Q

what state of mater does not change shape or volume?

A

solid

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16
Q

what state of mater has molecules that are tightly packed?

A

solid

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17
Q

what state of mater has molecules that move very slowly?

A

solid

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18
Q

what state of mater does not change volume, but does change shape?

A

liquid

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19
Q

what state of mater has molecules that are loosely packed?

A

liquid

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20
Q

what state of mater has molecules that move at a moderate pace?

A

liquid

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21
Q

what state of mater changes shape and volume?

A

gas

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22
Q

what state of mater has molecules that move freely and quickly?

A

gas

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23
Q

when a phase change takes place what 3 things increase of decrease?

A

thermal energy
molecular
temperature

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24
Q

the process by which water moves through the Earth and atmosphere?

A

the Water Cycle

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25
Q

falls in the form of rain, snow, sleet, or hail

A

precipitation

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26
Q

water running over the surface, due to gravity

A

runoff

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27
Q

water evaporating off the surface of plants

A

transpiration

28
Q

this phase change word is what forms clouds

A

condensation

29
Q

this amount of water on Earth remains the same

A

static

30
Q

water that flows back into the ocean

A

runoff

31
Q

water molecules are attracted to (stick to) other water molecules.

A

Cohesion

32
Q

the top layer of water molecules are extra cohesive and create a skin-like surface.

A

Surface Tension

33
Q

Water can stick to other molecules.

A

Adhesion

34
Q

the land and the water that flows across the land to a common place- Drainage Basin

A

watershed

35
Q

found at the highest elevations in a watershed

A

headwaters

36
Q

main river in the watershed

A

main stem

37
Q

smaller streams that flow into larger streams

A

tributaries

38
Q

higher ground that separates watersheds

A

divide

39
Q

area that is susceptible to flooding - usually low-lying

A

flood plain

40
Q

horseshoe shaped body of water that has detached from a meandering river

A

Oxbow Lake

41
Q

Sediment deposited where a river flows into an ocean or lake

A

Delta

42
Q

an area where a freshwater river or stream meets the ocean

A

Estuary

43
Q

what watershed do we live in?

A

Chesapeake bay

44
Q

what are the 5 main watersheds in Virginia?

A

Chesapeake bay
Atlantic Ocean
North Carolina Sounds
Mississippi River
The gulf of Mexico

45
Q

non-living

A

Abiotic

46
Q

the living community and the non-living factors that affect it

A

Ecosystem

47
Q

living or once living

A

Biotic

48
Q

area of low land that is soaked with water for at least part of the year (where dry land meets water)

A

wetland

49
Q

trees & shrubs

A

Swamps

50
Q

mosses

A

Bogs

51
Q

grassy areas

A

Marshes

52
Q

Importantce of wetlands

A
  1. Hapitats
  2. Nutrients (food)
  3. Natural Water Filters
  4. Control Floods
  5. Increase Groundwater Levels
53
Q

comes from multiple locations so you can´t trace it back to the original source

A

Non-point source

54
Q

erosion

A

Non-point source

55
Q

washing car

A

Non-point source

56
Q

oil/fluid leaks

A

Non-point source

57
Q

pesticides

A

Non-point source

58
Q

fertilizer

A

Non-point source

59
Q

animal waste

A

Non-point source

60
Q

litter/trash

A

Non-point source

61
Q

you can point to where the pollution is coming from

A

Point source

62
Q

factory

A

Point source

63
Q

leaking septic tank

A

Point source

64
Q

broken sewage pipe

A

Point source

65
Q

what are some properties of water that scientists monitor in watersheds?

A

water temperature
dissolved oxygen
turbidity
pH
nitrates addict
phosphates
salinity
macro-invertebrates

66
Q

snake-like bends in a river

A

Meander

science (12 decks)

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