Weather Review

What is weather?

• The study of atmospheric conditions

• The atmospheric conditions and short-term changes at a certain place and time

• The prediction of atmospheric conditions

• The long-term climate conditions at a certain place

What happens to air pressure as altitude increases?

• It increases

• It stays the same

• It decreases

• It fluctuates unpredictably

What instrument is used to measure air pressure?

• Thermometer

• Anemometer

• Barometer

• Hygrometer

What causes wind?

• Air moving from an area of low pressure to an area of high pressure

• The rotation of the Earth

• Air moving from an area of high pressure to an area of low pressure

• The amount of water vapor in the air

What is the term for the amount of water vapor in the air?

• Precipitation

• Humidity

• Dew point

• Barometric pressure

What does it mean when the air is saturated with water vapor?

• It is at the dew point

• It holds the minimum amount of water vapor possible at that temperature

• It holds the maximum amount of water vapor possible at that temperature

• It is about to rain

What is relative humidity?

• The percentage of water vapor in the air compared to the amount of carbon dioxide

• The percentage of air pressure at a given altitude

• The percentage of water vapor in the air compared to the maximum it can hold at that temperature

• The percentage of oxygen in the air

What forms when air near the ground becomes saturated and the water vapor condenses into a liquid?

• Frost

• Clouds

• Fog

• Dew

What is the dew point?

• The temperature at which air becomes fully saturated and rain starts to fall

• The temperature at which air becomes fully saturated and the amount of moisture stays constant

• The temperature at which air pressure is at its highest

• The temperature at which air begins to move creating wind

Which type of clouds are flat, white, and layered?

• Cumulus

• Cirrus

• Stratus

• Fog