Air Masses and Fronts

What is a front?

• A place where air masses meet

• the front part of a storm

• An area of very high wind

• an area that has fair weather

Tags

NGSS.MS-ESS2-5

rapidly moving cold air  mass runs into a warm air mass the cold air slides under the warm air. This is called a  .....

• cold front

• warm front

• stationary front

Tags

NGSS.MS-ESS2-5

When a cold front is approaching, what happens?

• warm air is pushing under cold air causing humid weather and lower temperatures

• warm air is pushing under cold air causing humid weather and higher temperatures

• warm air rises, cools, and causes rain and thunderstorms

• cold air is pushed over warm air causing rain and thunderstorms

Tags

NGSS.MS-ESS2-5

Which type of air would you find at air mass D?

• cold, dry

• warm, humid

• warm, dry

• cold, humid

Tags

NGSS.MS-ESS2-5

What is the effect of a warm air mass meeting a cold air mass?

• The formation of a warm front

• The formation of a cold front

• The formation of a stationary front

• The formation of an occluded front

Tags

NGSS.MS-ESS2-5

Match the following

• A line on a weather map connecting areas of similar air pressure

• Air Mass

• Nothing moves, warm and cold air collide from opposite direction

• Front

• Warm air rises over cooler air bringing fair weather

• Isobar

• A large volume of air with similar properties such as humidity and temperature

• Warm Front

• The boundary between air masses

• Stationary Front

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

A ​ (a)   front is moving through Texas, as well as a ​ (b)   pressure system.

• cold

• low

• warm

• high

Tags

NGSS.MS-ESS2-5

Sort the information to the correct type of air mass

• dry and warm

• dry and cold

• wet and warm

• wet and cold

Tags

NGSS.MS-ESS2-5

Vocabulary

• a huge body of air in the troposphere with similar temperature and humidity throughout

• front

• a boundary where two air masses meet

• orographic lifting

• traps warm air between to cold fronts/usually causing rain

• air mass

• as warm air crosses over a mountain it precipitates before it reaches the other side/the rain shadow

• stationary front

• when two colliding air masses stop moving

• occluded front

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Match the system or front with the conditions.

• temperatures drop and air pressure rises

• after a cold front passes through

• air pressure begins to drop

• what air pressure change happens after a storm

• air pressure begins to rise

• as storms approach what air pressure change happens

Tags

NGSS.MS-ESS2-5