Water returns to the atmosphere as vapor by the process of __________.

Water vapor in the atmosphere ________ to form clouds.

Cool air can hold ______ water vapor than warm air.

____________ is the measure of the amount of water vapor in the air.

A __________ is an instrument used for measuring relative humidity.

A percentage comparing the amount of water vapor in the air to the maximum amount of water vapor the air can hold at a particular temperature is called ________.

Which two conditions are required for cloud formation?

What is the dew point?

The sky is mostly blue, with some high, thin, feathery clouds. Which type of weather is most likely to occur?

Wispy, feathery clouds are called ________ clouds.

Cumulonimbus clouds usually result in _______.

_________ clouds form in low, flat layers.

Clouds that look like fluffy, rounded piles of cotton are _______ clouds.

Clouds that form very near the ground are called ________.

Name the type of cloud shown in the picture.

Name the type of cloud shown in the picture.

Name the type of cloud shown in the picture.

Name the type of cloud shown in the picture.

Name the type of cloud shown in the picture.

Name the type of cloud shown in the picture.

Name the type of cloud shown in the picture.

Name the type of cloud shown in the picture.

On a weather map, what do half-circles along a curved line show?

On a weather map, what does a line marked with half-circles pointing to one side and triangles pointing to the other side show?

Standard symbols on weather maps show fronts, areas of high and low pressure, __________ and temperatures.

A(n) ________ is a scientist who studies and tries to predict weather.

A ________ is a snapshot of weather conditions at a particular time over a large area.

On a weather map, lines joining places with the same temperature are called ____________ .

On a weather map, lines joining places with the same pressure are _________.

Maritime polar air masses are

A stalled front that may bring many days of clouds and precipitation is a(n)

An air mass that forms over Arizona and New Mexico will be a

Bands of high-speed winds about 10 kilometers above Earth's surface are called

A large body of air that has similar temperature, humidity, and air pressure at a given height is called a(n)

Air masses that form over oceans are called _______ air masses.

The boundary where air masses meet is a

A(n) _________ front occurs when a fast-moving warm air mass overtakes a slower-moving cold air mass.

A swirling center of low air pressure is called a _______.

______ are high-pressure centers of dry air.

Sleet falls from clouds as ice particles.

Rain that freezes on a cold surface is freezing rain.

Rain gauges can be used to measure precipitation.

Hail falls from clouds as rain.

Drops of drizzle are smaller than drops of mist.

Long-term _________ can devastate a region; crops fail and streams dry up.

You should be on the lookout for tornadoes during hurricanes because the two often occur together.

During a hurricane, the safest thing to do is lie in a ditch.

A thunderstorm loses strength as it passes over land.

Storm surges accompany hurricanes.

Tornadoes can cause extreme damage to one area, and hardly touch another area just a few hundred feet away.

A _________ is a tropical storm that has winds of 119 km/h or higher.

A rapidly whirling, funnel-shaped cloud that reaches from a cloud down to Earth's surface is a

When a hurricane makes landfall it brings a __________ which is a dome of water that can severely damage the coast.

A sudden electrical discharge that often accompanies thunderstorms is called

What type of front is shown in the picture?

What type of front is shown in the picture?

What type of front is shown in the picture?

What type of front is shown in the picture?

What type of front is shown in the picture?