4.8a

huge body of air that has similar temperature, humidity and air pressure

• climate

• wind

• front

• air masses

Tags

NGSS.MS-ESS2-5

boundary where two air masses meet.

• wind

• air masses

• front

• climate

Tags

NGSS.MS-ESS2-5

when a warm, less dense air mass overtakes a cold, dense air mass; brings rain and showers followed by warmer, more humid weather; moves slowly

• cold front

• warm front

• stationary front

• high pressure system

Tags

NGSS.MS-ESS2-5

the boundary between a mass of cold air and a mass of warm air where the cold air is pushing the warm air upward, creating a storm.

• warm front

• high pressure system

• low pressure system

• cold front

Tags

NGSS.MS-ESS2-5

circulating air with high pressure; generally brings clear skies and calm air or gentle breezes

• high pressure system

• stationary front

• cold front

• low pressure system

Tags

NGSS.MS-ESS2-5

air spirals inward toward the center and then upward; may cause clouds and precipitation - thunder storms

• cold front

• stationary front

• high pressure system

• low pressure system

Tags

NGSS.MS-ESS2-5

measures the air pressure

caused by the weight of all the air in the atmosphere pressing down on Earth

• stationary front

• barometer

• humidity

• high pressure system

The amount of water vapor in the air

• high pressure system

• low pressure system

• barometer

• humidity

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-5

What does the word "measure" mean?

• to keep track of information

• to say what may happen next using evidence

• amount in size, weight, temperature, force, time, etc.

• become different

What are the characteristics of a high-pressure area?

• Winds blow inward, causing storms

• Cooler air

• More pressure than surrounding area, clear blue skies

• Can change daily

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6