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7th grade Science > Test 4 > Flashcards

Test 4 Flashcards

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Biology 101 flashcards
1
Q

what do clouds require to form?

A

water vapor, at or below dew point, condensation nuclei

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1
Q

list condensation nuclei

A

salt, dust, bacteria, sand, dirt, volcanic ash

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2
Q

when water changes from liquid to gas (water vapor)

A

Evaporation

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3
Q

when water vapor condenses to a liquid

A

condensation

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4
Q

when water gets heavy and falls from clouds

A

precipitation

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5
Q

when water penetrates crust

A

infiltration

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6
Q

the movement of water underground

A

percolation

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7
Q

when plants release water from their stoma

A

transpiration

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8
Q

lakes, rivers, etc that flow across earth

A

surface water flow

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9
Q

comes from glacier and mountains (like run off)

A

ground water flow

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10
Q

these are part of water cycle because of sweat/pee

A

organisms

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11
Q

why do we have world wide water shortages if we have so much water

A

Most of the water is salt water and you can’t drink it. In some places it doesn’t rain and it can’t be collected.
97% earth is saltwater, 3% fresh water (rivers and streams make up 0.03% is on earth’s surface)

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12
Q

cirro

A

highest altitude cloud, curly, wispy

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13
Q

cumulo

A

heap or pile, puffy

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14
Q

strato

A

lowest altitude cloud, thick and dense

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15
Q

alto

A

mid altitude cloud

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16
Q

nimbus

A

rain bearing

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17
Q

Altocumulus

A

mid altitude, patchy, larger than cirrocumulus and smaller than stratocumulus

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18
Q

stratocumulus

A

large, very dense wavy texture

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19
Q

altostratus

A

water vapor and icy crystals

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20
Q

cirrocumulus

A

has little cloudlets, curly, wispy, thick, dense

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21
Q

cumulonimbus

A

dense, build upward, formed from water vapor, condenses in the lower troposphere,

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22
Q

nimbostratus

A

dark, no lightning, continuous rain or snow

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23
Q

What layer of the atmosphere do we live in?

A

troposphere

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24
Q

Where does troposphere end?

A

10 km above sea level

25
Q

What happens in troposphere?

A

weather

26
Q

How much volume and mass does the lowest layer (troposphere) account for?

A

97% volume and 3% mass

27
Q

How does the temperature change as you move up in altitude?

A

gets colder

28
Q

what is an isobar

A

lines on a map that indicate areas with the same barometric pressure

29
Q

weather with low barometric pressure

A

rainy, windy, bad

30
Q

weather with high barometric pressure

A

dry, clear

31
Q

A high pressure system sinks or rises

A

sinks bc more dense

32
Q

a low pressure system sinks or rises

A

rises bc less dense

33
Q

how do low and high pressures spin and in what directions?

A

low-inward, counterclockwise
high-outward, clockwise

34
Q

Does air move from high to low or low to high pressure?

A

high to low

35
Q

what causes wind?

A

the flow of gases or air from an area of high pressure to low pressure resulting from uneven heating of the ground.

36
Q

Explain convection as it relates to movement of air

A

High pressure heats the ground and then air rises and cools.Reaches a point where is loses energy and sinks again.

37
Q

Understanding a station model

A

The tail spins away from the feathers indicating clockwise or counterclockwise. The tail also points to the direction the wind is coming from. Cloud cover is shown by filling in the circle. Feathers show how many knots of wind. Full feather is 10 knots and half a feather is 5 knots.

38
Q

what instrument measures pressure

A

barometer

39
Q

what units does a barometer use?

A

millibars, inches, centimeters, millimeters

40
Q

How are LPS and fronts associated/similar?

A

Fronts are LPS bc they bring rainy, cloudy weather

41
Q

what is dew point

A

the point at which air is saturated with water vapor

42
Q

How do cold fronts differ from warm fronts?

A

cold-cold air mass takes the place of a warm one, rapid weather changes, widespread cloud coverage, fog
warm-a warm air mass takes the place of a cold one, slow weather changes, intense sun coverage, thunderstorms during summer

43
Q

5 major air mass types

A

continental polar, continental arctic, continental tropical, maritime polar, and maritime tropical.

44
Q

cP

A

continental polar-dry and cold

45
Q

cA

A

continental arctic-cold and dry

46
Q

mP

A

maritime polar-cool and moist

47
Q

mT

A

maritime tropics-warm/hot and moist

48
Q

cT

A

continental tropical-warm/hot and moist

49
Q

mA?????

A

maritime arctice-cold and moist

50
Q

stationary front

A

color:red and blue
symbol:Alternating red semi-circles and blue triangles on opposite sides of line
drawing:

50
Q

4 fronts

A

cold, warm, stationary, occluded

51
Q

occluded front

A

color:purple
symbol:alternating semicircles and triangles
drawing:

52
Q

warm front

A

color: red
symbol:semicircles
drawing:

53
Q

cold front

A

color: blue
symbol:triangles
drawing:

54
Q
A

cold front
Before southerly winds, thunderstorms
after temp decreases

55
Q
A

warm front
before easterly winds, some precipitation and clouds
after southerly winds, temperatures rise and clouds disappear

56
Q
A

stationary front
before clear and dry
after light precipitation and clouds

57
Q
A

occluded front
change in temperature
winds shift direction

58
Q

Almost ALL fronts bring what type of weather conditions

A

rain, thunderstorms, gusty winds

7th grade Science (1 decks)

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