Science Review Chapter 6

_______ of the Earth's surface is covered by water

• 97%

• 3/4

• 1/2

• half

What does a weather forecaster use to measure air pressure?

• Anemometer

• wind sock

• Barometer

• Thermometer

What does a weather forecaster use to measure wind speed?

• thermometer

• wind sock

• wind vain

• anemometer

Greenhouse gases are beneficial(good) because they ?

• help keep the earth warm

• give plants oxygen

• they are part of the water cycle

• measure the water in the air

Oceans are __________ and fresh water is not.

• hot

• part of the water cycle

• spicey

• salty

Clouds close to the ground that often bring rain or snow are called?

• Cirrus

• stratus

• cumulus

• fog

How is the air at the top of the mountain different from the air at the base of the mountain?

• there are more clouds

• there is no difference in air pressure

• the air pressure is greater at the top

• the air pressure is lower at the top

You often see clouds along a front because the water vapor in the warm air mass?

• cools and condenses into clouds

• becomes a land breeze

• becomes a sea breeze

• freezes into ice

A cold air mass that meets a warm air mass creates a?

• low pressure area

• high pressure area

• warm front

• cold front

When cold air meets warm air it pushes the warm air?

• downward

• upward

• sideways

• the water cycle