Weather Events
Air Masses and Fronts
Climate and Seasons
Meteorology and Tools
100

Any form of water that falls from clouds is called what?

What is precipitation?

100

Cold, dry air affecting the northern United States in winter comes from these air masses.

What are continental polar air masses?

100

The average year-after-year conditions of temperature, precipitation, winds, and clouds in an area are called what?

What is climate?

100

Scientists who study weather and try to predict it are called what?

What are meteorologists?

200

A funnel-shaped cloud that touches Earth's surface is called what?

What is a tornado?

200

A rapidly moving cold air mass overtaking a slow-moving warm air mass creates this type of front.

What is a cold front?

200

The seasons are caused by this.

What is the tilt of Earth's axis as it revolves around the sun?

200

This tool enables meteorologists to follow the path of an approaching thunderstorm.

What is radar?

300

Hurricanes typically form over this type of water.

What is warm ocean water?

300

When a warm air mass and a cold air mass meet and neither moves the other, this forms.

What is a stationary front?

300

Climates are classified based on these two factors.

What are precipitation and temperature?

300

Lines on a map joining places with the same air pressure are called what?

What are isobars?

400

This is described as this violent disturbance in the atmosphere.

What is a storm?

400

The major wind belts over the continental United States generally push air masses in this direction.

What is west to east?

400

The side of a mountain that receives less rainfall is known as what?

What is the leeward side?

400

This phenomenon is caused by Earth's varying rates of rotation and revolution.

What are the seasons?

500

When a warm air mass is caught between two cooler air masses, this type of front forms.

What is an occluded front?

500

Regions that receive less than 25 centimeters of rain annually are known as these.

What are deserts?

500

This type of balloon is used to collect data from the upper atmosphere, including temperature, pressure, and humidity.

What is a weather balloon?