• Lower portion of the atmosphere where weather takes place
• life forms
• weather
• 75% of the atmosphere

• Upper portion of the atmosphere
• ozone layer
• 24% of the atmosphere

• The portion of the atomosphere from about 30-80 kilometers (20-50 miles)above the surface characterized by temperatures that decrease from 10 to -90 degrees c (50 to -130 degrees f) with increasing altitude.
• cold
• a few molecules
• shooting stars burn up here

• The outer most shell of the atmosphere between the mesosphere and space, where temps increase steadily with altitude.
•  fewer molecules
• large temperature fluctuation

• The outermost layer of the earth's atmosphere lying above the theremosphere and extending thousands of kilometers in space
• occasional molecules gradually escaping into space

liquid portion of earth

solid portion of earth

• the condition of the lowest layer of the atmosphere at a particular time and place
• the state of the air at a certain time and a certain place. 

Sun, wind, and water

what we will wear, whether we will be outdoors or indoors and even how we feel.

• the process of water changing into gas
• phase change where water changes from liquid to gas

The force with which the weight of the air presses down on the earth

• the process of water vapor changing back into water
• phase change wehre water changes from liquid to a gas

formed from condensation of water in the atmosphere

The process of continuous evaporation, condensation and precipitation.

• Moisture falling from the sky
• any form of water that falls to the earth's surface

The source of energy causing the water cycle

A requirement for the condensation of water vapor

water which travels through rocks below the earth's surface

water traveling across land on its way to the ocean

plant life on earth

Large bodies of water which cover 3/4 of the earth

• heat
• wind
• pressure
• moisture

a meatsure of time.

Weather is the conditions of an atmosphere over a short period of time.

Climate is how the atmosphere behaves over relatively long periods of time.

• clear
• cloudy
• rainy
• fair
• humid
• cold
• windy 

what kind of air masses are moving above

air heated by the sun that moves

• water that moves over the surface of the earth
• the movement of water through plants

1. Tepicher

2. Rotation of the earth

3. Pressur systems

Land and water are not heated and cooled eequally and,

therefore, the air above them is also DIFFERENT.The greater the DIFFERENCE IN TEMPERATURE between the air over land and the air over water, the stronger the wind.