Science

Front 1

Name the four elements of weather

Back 1

temperature
wind
pressure
moisture

Front 2

What is the main causes of weather conditions?

Back 2

temperature

Front 3

Describe how a thermometer works

Back 3

Inside the thermometer there is a liquid that rises when it is near something warm and sinks when it is near something cold.

Front 4

the weight of the air pushing down on the Earth

Back 4

air pressure

Front 5

a high-pressure area

Back 5

cyclone

Front 6

the tendency of a moving object to curve due to the Earth's rotation

Back 6

Coriolis effect

Front 7

a low-pressure area

Back 7

anticyclone

Front 8

the temperature at which the air becomes saturated

Back 8

dew point

Front 9

the amount of moisture in the air

Back 9

humidity

Front 10

a study of the atmosphere and the weather

Back 10

meteorology

Front 11

the moisture that falls from the clouds

Back 11

precipitation

Front 12

The energy necessary for weather changes to occur comes from _____.

Back 12

the sun

Front 13

As air is warmed by the surface of the Earth, it _____.

Back 13

rises

Front 14

The general flow of air from the poles to the equator occurs _____.

Back 14

at the surface of the Earth

Front 15

Airborne objects tend to curve to the right _____.

Back 15

in the Northern Hemisphere

Front 16

The instrument used to measure air pressure is the _____.

Back 16

barometer

Front 17

The movement of air around an anticyclone is:

Back 17

clockwise

Front 18

As air is cooled it:

Back 18

sinks

Front 19

An instrument used to determine the direction of air movement is the _____.

Back 19

wind vane

Front 20

The general flow of air from the equator to the poles occurs _____.

Back 20

in the upper troposphere

Front 21

An instrument for measuring the speed of the wind is the _____.

Back 21

anemometer

Front 22

The primary cause of weather is due to
________ in temperature around the Earth

Back 22

differences

Front 23

The troposphere receives most of its heat energy directly from the ______

Back 23

ground

Front 24

Local winds can be caused by _____ heating of the Earth's surface.

Back 24

uneven

Front 25

Cold air is more dense than warm air.

Back 25

true

Front 26

A narrow band of high-velocity air in the upper troposphere is called the jet stream

Back 26

true

Front 27

Standard sea level pressure is about _____.

Back 27

14.7 lb/in²

Front 28

Rain falling through sub-freezing calm air will turn into _____.

Back 28

sleet

Front 29

Which two factors appear to have the most direct influence on weather?

Back 29

moisture
temperature

Front 30

Most violent storms form in _____.

Back 30

maritime tropical air masses

Front 31

At the center of a tornado is a _____.

Back 31

low-pressure area

Front 32

The system of clouds formed by the warm front are mostly _____.

Back 32

ahead of the front

Front 33

When a hurricane reaches land, it _____.

Back 33

dies out

Front 34

The boundary between two air masses that are moving parallel to each other is called a(n) _____.

Back 34

stationary front

Front 35

An anvil-shaped head is a feature of a mature thunderstorm.

Back 35

true

Front 36

The prefix nimbo- means heap.

Back 36

false

Front 37

Continental and maritime describe the amount of _________ in the air mass

Back 37

humidity

Front 38

Cirrus clouds consist of many tiny ice crystals and are sometimes called "mare's tale" clouds.

Back 38

true

Front 39

The cooling of an air mass from below may cause stratus clouds to form

Back 39

true

Front 40

Warm air lifted over a moving cold air mass will produce a cold front

Back 40

true

Front 41

The two conditions required for thunderstorms are:

Back 41

cold front lifting warm, moist air
rapidly rising air heated from ground

Front 42

Hail is mostly associated with _____

Back 42

thunderstorms

Front 43

A potential tornado which has not touched the ground is a _____.

Back 43

funnel cloud

Front 44

People are able to predict future events to some extent because

Back 44

God created an orderly world
people understand some of the physical laws of nature

Front 45

To make weather information easier to understand, weather stations:

Back 45

make observations at the same time of day

Front 46

The semicircles on the symbol for a warm front indicate _____.

Back 46

the direction of motion

Front 47

Weather balloons are sent into the atmosphere to record

Back 47

temperature
pressure
humidity

Front 48

Maps which indicate the expected future weather conditions are called

Back 48

short range forecasts
extended forecasts