1. Weather tools

2. Thermometer Measure of thermal energy = particle motion Warm air holds more H 2 O vapor than cold air Warm air rises / Cold air sinks

3. Sling Pyschrometer Humidity = moisture in the air = ( H 2 O vapor) Moist air cooled = RAIN

4. Barometer Measures atmospheric pressure

5. Gases (atmosphere) always move from high to low pressure

6. High pressure airs flow outward...preventing changes Low pressure invites air masses in...allowing different air masses to meet and change

7. Anemometer records wind speed Wind Global prevailing wind patterns Equator/Pole temperature differences & the rotation of Earth Local winds High to Low pressure movement Coastal areas – uneven heating of land and water