Chapter 6 test review• Weather

Two conditions are required for cloud formation: cooling of the air and ____.the presence of particles in the air

Cold, dry air affecting the northern United States in winter often comes from ____.• continental polar air masses

Weather associated with an anticyclone is generally ____.• dry and clear

When a warm air mass and a cold air mass meet and neither can move the other, the result is a(n) ____.

• stationary front

The low air pressure of ____ is often associated with storms and precipitation.• cyclones

Scientists called ____ study the causes of weather and attempt to predict it.• meteorologists

A major difference between cyclones and anticyclones is ____.• the direction of their winds

Any form of water that falls from clouds is called ____.• precipitation

What kind of weather could a continental tropical air mass that formed over northern Mexico bring to the southwestern United States?

• hot and dry

. A(n) ____ front may bring many days of rain because neither the cold nor warm air mass can move the other.

• stationary front

Air mass A is a ____. Air mass B is a ____.Air mass E is a ____.Air mass D is a ____.

Maritime polar

Continental polar

Continental tropical

Maritime tropical

True (A) or False (B) A tornado is more likely to occur at Y than Z?

true

. A long-lasting storm that begins over the warm surface of the ocean and has winds of 119 km/h or higher is a ____.

• hurricane

Large clouds that often produce thunderstorms are called ____.

• cumulonimbus clouds

• What does A represent?

• What does D represent?

• What is F called?

• What does C represent?

• What does E represent?

isobar

warm front

cold front

occluded front

stationary front

A funnel-shaped cloud that touches Earth’s surface is called a ____.• tornado

Hurricanes typically form over ____.

• warm ocean water

The boundary where unlike air masses meet but do not easily mix is called a(n) ____.

• front

What is measured using the Enhanced Fujita scale?• tornado damage

. On weather maps, the curved lines connecting places with similar temperature conditions are called ____.

• isotherms

Small lines at the end of the shaft that represents wind direction on a weather map indicate ____.

• wind speed

Very high feathery clouds are called ____.

• cirrus clouds