Chapter 13 Test

Front 1

The movement of water between the atmosphere and Earths surface

Back 1

water cycle

Front 2

the process which water molecules liquid water escape into the air as water vapor

Back 2

evaporation

Front 3

a measure of the amount of water vapor in the air

Back 3

humidity

Front 4

the % of water vapor that is acturally in the air compared to the maximum amountof water vapor the air can hold at a paricular temp;

Back 4

relative humidity

Front 5

relative humidity is measured wiht

Back 5

psychrometer

Front 6

when water vapor in the air condense to form liquid water or ice crystals

Back 6

clouds

Front 7

the temp at which condensation begins

Back 7

dew point

Front 8

3 main typs based on shape

Back 8

cirrus ,cumulus, and stratus

Front 9

alto,

Back 9

high

Front 10

clouds that form at or near the ground

Back 10

fog

Front 11

commmon types of precipitation

Back 11

rain, hail, snow, sleet, and freezing rain

Front 12

precipitaion made up of small drops of water

Back 12

drizzle

Front 13

round pellets of ice larger than 5 millimeter in diamere

Back 13

hailstones

Front 14

often water vapor in a cloud is converted directlhy in into ice crystals

Back 14

snowsnowflakes

Front 15

ice particles smaller than 5 millileters of in a diameter are

Back 15

sleet

Front 16

raindrops that freeze when they touch a cold surface is

Back 16

freezing rain

Front 17

a huge body of air that has a sim. temp. humidity, and air pressure at any given heigh

Back 17

aiar mass

Front 18

four major airmasses that influence the weather in na are

Back 18

maritime tropical, continental troical, maritime poler,and continentla polar

Front 19

warm, air masses form in the topics have low air pressure

Back 19

tropical

Front 20

cold, air masses form n of 50 n latitude and s of 50s latitude with high pressure

Back 20

polar

Front 21

air masses form over oceans

Back 21

mairtime

Front 22

form over land

Back 22

continental

Front 23

In Us air masses commonly moved by

Back 23

prebailing westerlies and jet streams

Front 24

the boundary where the air massses meet

Back 24

front

Front 25

colliding air masses can form four types

Back 25

cold,warm, stationary, and occluded

Front 26

cold and warm air masses meet but neither can move each other

Back 26

stationary

Front 27

awarm mas is caught between two cold air

Back 27

occluded

Front 28

a swirling center of low air pressure

Back 28

cyclone

Front 29

cyclones and decreasing air is associated with: aand descending air in anticyone causes

Back 29

clouds, wind, and precipitaiton; dry clear weatrher

Front 30

high pressure centers of dry air

Back 30

anticyclones

Front 31

a violent disturbance in the atmosphere

Back 31

storm

Front 32

a small storm often accompaned by heavy precipitation and frequent thunder and lightning

Back 32

thuderstorm

Front 33

Thunderstorms form in

Back 33

large cumulonimbus clouds, strorm heads

Front 34

a sudden spark or electric discharge,as these charges jump between parts of a cloud, between nearby clouds, or between a cloud and the ground

Back 34

lightning

Front 35

heavy rains in thunderstorms can cause

Back 35

flood in low lying areas

Front 36

lightning can cause

Back 36

unconsciousness, serious burns, or even heart failure

Front 37

What occurs when so much water pours into a stream or river that its banks overflow covering the surrounding air

Back 37

floods

Front 38

safest place to be during a thunderstrorm

Back 38

indoors

Front 39

During thunderstorms avoid

Back 39

where lightning can strike, and objects that conduct electricity

Front 40

a rapidly whirling, funnel shaped cloud that reaches down from a strom cloud to touch earths's surface

Back 40

tornado

Front 41

Tornadoes are usually cause by; if a tornado occurs over water it is a

Back 41

thick cumulonimbus clouds like thunderstorms,:waterspout

Front 42

a well built building away from windos and doos to avoid fly debris LIe on floor under sturdy furniture or if outside lie flat in ditch storm shelter or base ment of

Back 42

safest place in ta tornado is

Front 43

Heavy snow fallscan block

Back 43

roads, damage crops and cause water pipes to freeze and burst

Front 44

in a ____try rto find shelter from wind

Back 44

snowstroms

Front 45

a tropical cyclone that has windso of 119 km per hour up

Back 45

hurricane or typhoon

Front 46

Hurricanes begin over

Back 46

warm ocean water as alow pressure are or tropical disturbance

Front 47

a dome of water that sweeps acroosss the coast where the hurricane lands

Back 47

storm surge

Front 48

leave area immediately when

Back 48

hurricane

Front 49

scientists who study the causes of weather and try to predict it

Back 49

meteorologists

Front 50

Meterologists use

Back 50

maps, charts, and computer to analyze weather data nad to prepare weather forecasts
1

Front 51

Whrere do weather reporters get their info

Back 51

National weather Service and it gets it from balloons, satellites, radar. and surface instruments to gather data

Front 52

lines join places on the map that have the same air pressure

Back 52

isobars

Front 53

lines joing places with same temp

Back 53

isotherm

Front 54

standard symbols of weather maps show

Back 54

fronts, areas of high and low pressure, types of precipitation, and temperatures

Front 55

the forecasters will unlikely to ever be able to predict weather a month in advance w/ accuracy because of

Back 55

butterfly effect