Understanding Weather

The temperature to which air must be cooled to reach saturations is called the _____.

• condensation nucleus

• dew point

• scatter point

• expansion point

What is humidity?

• water falling from the air

• water in the air

• water drops on plants

• water frozen on plants

Global winds are mostly caused by _____, whereas local winds are influenced more by _____.

• atmospheric convection cells; regional geography

• atmospheric convection cells; Earths climate

• air pressure differences; regional geography

• regional geography; Earth's climate

In which of the following regions are global winds more likely than local winds to affect climate?

• along the coast

• along the equator

• close to the poles

• in the open ocean

Which of the following symbols represents a warm front?

• 
• 
• 
• 

In the weather map below, what kind of front recently passed through Pennsylvania from Northwest to Southeast?

• Cold Front

• Occluded Front

• Warm Front

• Stationary Front

True or False: Lightning can strike the same place twice.

• True

• False

A cluster of thunderstorms develops over the Atlantic in August. Wind speeds are increasing and heavy rains are moving towards the coast. What type of storm may be developing?

• Tornado

• Hurricane

• Drought

• Blizzard

Where is the best place to be during a tornado warning?

• in the basement

• in your car

• in the attic

• under the windows

What is the dew point?

• a description of the current state of the atmosphere

• the amount of water vapor in the air

• the temperature at which condensation forms from saturated air

• the weather