Weather & Climate Review

On a clear, sunny day, you see on the news that a low-pressure system will be moving into the area tomorrow. Which weather conditions will this system most likely bring to the area?

• stormy, rainy weather

• Hot and sunny weather

• Clear skies

• Hot and dry weather

Three friends are looking at the following chart which shows the weather in the same city on ten random days last year. They each have different opinions--who is correct?

• Jim says that the weather is not affected by the season.

• Kelly says that the weather changes from day to day and by the seasons.

• Mitch says weather continues to get warmer as the year goes on.

How are convection currents produced in the air?

• Wind causes convection currents by stirring up the air.

• Warm air is less dense, so it rises. Cold air moves in to take its place.

• Cold air is less dense, so it rises. As the cold air rises, warm air descends.

Convection currents, which affect weather and climate, are created by

• warm water

• seafloor explosions

• the uneven heating of the Earth.

• earthquakes

What is the source of energy responsible for heating the Earth?

A weather front occurs when two air masses of differing temperatures meet. When a cold air mass meets a warm air mass,

for example, what will happen to the warm air?

What kind of conditions causes more water to evaporate?

• Hot Temperatures

• Cold Temperatures

• It doesn't matter

What is the difference between weather and climate?

• Nothing, they are exactly the same.

• Weather is over a long period of time and climate can change day to day.

• Climate is over a long period of time and weather can change day to day.

• Weather is precipitation and temperature, and climate is the seasons.

True or False: the uneven heating of the Earth by the Sun causes temperature differences and pressure differences.

• True

• False

True or False: Convection currents cause air at the equator to move because differences in air density cause the rising and sinking of air.

• True

• False