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Science > Weather Patterns > Flashcards

Weather Patterns Flashcards

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0
Q

The four types of air masses influence the weather in ______ _______

A

North America

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1
Q

Science classify air masses according to _______ and _________

A

Temperature

Humidity

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2
Q

What are the four major types of air masses?

A

Maritime tropical
Maritime polar
Continental tropicals
Continental polar

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3
Q

When an air mass move into an area and ________ with other air masses, it causes the weather to _______

A

Interacts

Changes

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4
Q

In the US, air masses are commonly moved by the _________ _______ and _____ ______

A

Prevailing Westerlies

Jet Streams

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5
Q

Air masses generally move from ____ to _____

A

West to east

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6
Q

When two ______ _______ collide that have different tempeture and humidity, they ________ mix easily

A

Air masses

Do not

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7
Q

The boundary where the air masses meet becomes a ______

A

Front

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8
Q

______ and _______ weather often develop along a front

A

Storms

Changeable

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9
Q

What are the 4 types of fronts?

A

Cold front
Warm front
Stationary front
Occluded front

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10
Q

_________ is dense and tends to _____

A

Cold air

Sink

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11
Q

_________ is less dense and tends to ________

A

Warm air

Rise

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12
Q

When fast moving cold air mass runs into a slow moving warm air mass, the denser cold air slides under the warm air and pushes it upward
( what front is this? )

A

Cold front

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13
Q

Warm air mass caught between 2 cold air masses

what front is this?

A

Occluded front

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14
Q

Fast moving warm air mass overtakes slow cold air mass

what front is this?

A

Warm front

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15
Q

Cold air mass and hot air mass meet, but cannot move each other
( what front is this? )

A

Stationary front

16
Q

A ______ is a violent disturbance in the atmosphere

A

Storm

17
Q

Storms involve sudden changes in _____________ that causes rapid _____________

A

Air pressure

Air movement

18
Q

What are the 2 types of storms?

A

Thunderstorms

Tornadoes

19
Q

What is Tornado Alley?

A

An area in the US where tornadoes occur more often than other parts of the US
( only a small corner of Arkansas is part of tornado alley

20
Q

Small storms often with heavy rain, thunder, and lightning

what type of storm I this?

A

Thunderstorm

21
Q

________ is a sudden spark, or electric discharge, as positive and negative charges move around

A

Lightning

22
Q

_________ is the rapid heating of air by lighting that expands suddenly and explosively

A

Thunder

23
Q

A _______ is a rapidly whirling, funnel shaped cloud that reaches down from a storm cloud to touch Earth’s surface

A

Tornado

24
Q

A _________ is a tornado that occurs over a lake or ocean

A

Waterspout

25
Q

Tornadoes most commonly develop in ________ _________ ________

A

Thick cumulonimbus clouds

26
Q

_________ most commonly develop on thick cumulonimbus clouds

A

Tornadoes

27
Q

A waterspout is a tornado that occurs over a ______ or _______

A

Lake or ocean

28
Q

What causes tornadoes to drop down from the cloud?

A

Air pressure changes

29
Q

This area is where cold, dry air from Canada and warm, humid air from the Gulf meets most of the time

A

Tornado Alley

30
Q

A _________ means that tornadoes are possible in your area

A

Tornado watch

31
Q

A _________ mean that a tornado has been seen or spotted on radar in your area

A

Tornado warning

32
Q

A tornado watch means that tornadoes are _______ in your area

A

Possible

33
Q

A tornado warning means that a tornado has been ______ ______ in your area

A

Seen or spotted

34
Q

Where is the safest place to be during a tornado?

A

Interior room
Storm shelter
Basement

Science (5 decks)

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