Weather: Chapter 1, Section 2 Air Pressure
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WHAT ARE THE PROPERTIES OF AIR?
- 1. Air has mass
- 2. Air has density
- 3. Air has pressure
(Michael Did Play)
Force pushing down on an area or surface
The result of the weight pushing down on a column of air pushing down on an area
The amount of mass in a given volume of air
An instrument that is used to measure air pressure (barometric pressure or atmospheric pressure)
WHAT ARE TWO KINDS OF INSTRUMENTS USED TO MEASURE AIR PRESSURE?
1. Mercury Barometer
2. Aneroid Barometer
WHAT HAPPENS TO AIR PRESSURE AS ALTITUDE INCREASES?
Air pressure decreases
AS AIR PRESSURE DECREASES SO DOES ________
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