1. Weather Basics

2. How do we measure weather?

3. Temperature How hot or cold the air is
Sun heats the ground  ground warms the air
Measured using a thermometer

4. Air Pressure The weight of air pressing down on an area
High pressure = good weather
Low pressure = bad weather
Measured using a barometer
(in milibars)

5. Humidity
The amount of moisture in the air
Measured using a hygrometer

6. Wind The movement of air caused by differences in pressure
Blows from areas of high pressure to areas of low pressure
Measured using an anemometer