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Science - 8th Grade > Environmental Sciences > Flashcards

Environmental Sciences Flashcards

1
Q

How is pressure calculated?

A

force/area

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2
Q

What is pressure measured in?

A

Pascals(PA)

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3
Q

PSI

A

Pounds per sq in

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4
Q

Wind blows…

A

high to low

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5
Q

Colder air = what pressure?

A

High

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6
Q

Warmer air = what pressure?

A

Lower

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7
Q

Pressure decreases with what?

A

Altitude

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8
Q

Air pressure is measured in what?

A

millibars and inches of mercury

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9
Q

What is HG

A

Inches of mercury

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10
Q

Isobars

A

Lines connecting points of equal air pressure

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11
Q

Typical High Pressure System

A

Cold, stormy, strong winds, moist air

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12
Q

Typical Low Pressure System

A

Sunny, calm winds, cool, dry air

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13
Q

Av. Low pressure system HG

A

28.9

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14
Q

Av. High Pressure HG

A

30.5

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15
Q

Air Mass

A

Large body of air with the same temperature and moisture(humidity)

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16
Q

Where do cold masses tend to come from?

A

N, NW, W

17
Q

Where do warm air masses tend to come from?

A

S, SE, E

18
Q

Maritime Polar

A

Wet, cold, forms over cold water, brings that with it

19
Q

Maritime Tropical

A

Warm, wet, forms over warm water, brings that with it

20
Q

Continental Polar

A

Dry, Cold, forms over cold, dry land, brings that weather with it

21
Q

Continental Tropical

A

Dry, warm, forms over dry, warm, land, brings that weather with it

22
Q

Front

A

when air masses collide

23
Q

Cold front

A

When a cold air mass pushes up a warm air mass

24
Q

Warm front

A

When warm air mass stretches over cold air mass

25
Q

What happens when air masses collide?

A

Fronts. Bad things.

26
Q

Why is the middle of the US called Tornado Alley?

A

It’s where all the air masses collide, so there are natural disasters and horrible storms left and right

Science - 8th Grade (2 decks)

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