What are the long-term average of variations in weather for a particular area?

What is the large volume of air that has the same characteristics, such as humidity and temperature, as its source region?

What is the the area over which an air mass forms?

What is the phenomena caused by Earth's rotation that results in fluids and objects moving in a curved path rather than a straight line?

What are the wind zones between 60° N latitude and the north pole, and 60° S latitude and the south pole that are characterized by cold air?

What are the wind systems on Earth located between latitudes 30° N and 60° N, and 30° S and 60° S that move wind toward the poles from the west to the east?

What are the two global wind systems that flow between latitudes 30° N and 30° S that are responsible for the horse latitudes and the intertropical convergence zone?

What is the narrow band of fast, high-altitude, westerly wind that is caused by the large temperature difference in upper-level air and the Coriolis Effect?

What is the weather instrument that measures temperature using either the Fahrenheit or Celsius scale?

What is the weather instrument that measures air pressure?

What is the weather instrument that measures wind speed?

What is the weather instrument that measures relative humidity?

What is the instrument used for gathering data on temperature, pressure, and humidity in the upper-atmosphere?

What is the change in frequency based on the motion of a wave?

What is the record for weather data at a particular site at a particular time?

What are lines of equal pressure?

What are lines of equal temperature?

What is a forecast that relies on numerical data?

What is a forecast based on a comparison of current weather patterns to similar weather patterns from the past?

The exchange of heat or moisture between an air mass and the underlying surface is called __________.

What causes the Coriolis effect?

High-pressure systems usually are associated with _____.

Low-pressure systems usually are associated with _____.

A __________ is a narrow region that separates two air masses of different densities.

What is the network of weather stations located across the United States called?

__________ is used to measure the speed of raindrops toward or away from a specific point.

What are four- to seven-day forecasts based on?

Where do Maritime air masses form?

Where do Continental air masses form?

Where do Tropical air masses form?

Where do Polar air masses form?

Sinking air, caused by the trade winds, creates weak surface winds and is responsible for which landmark on Earth?

Trade winds cause air to be forced upward at the equator and deliver moisture. This combination is responsible for which landmark on Earth?

Which wind system is depicted at labels 1 and 9?

Which wind system is depicted at labels 2 and 8?

Which wind system is depicted at labels 4 and 6?

Which wind system is depicted at labels 3 and 7?

Which wind system is depicted at label 5?

Which front is created when cold, dense air displaces warm air and forces the warm air up along a steep slope?

Which front is created when advancing warm air displaces cold air and develops a gradual boundary slope?

Which front is created when two air masses meet, but neither advances and the boundary between them stalls?

Which front is created when a cold air mass moves so rapidly that it overtakes a warm front and forces the warm air upward and causes the advancing cold air mass to collide with another cold air mass that was in front of the warm air?

What two factors are most important in weather forecasting?

Which type of forecast is most reliable?