1. Weather and Weather Instruments
Mrs. Sury

2. Definitions
Atmosphere: the thick blanket of air that surrounds the Earth
Weather: description of what the air is like in a particular place and at a particular time.
Three basic elements of weather are sunlight, air and water
Meteorology is the study of weather
Meteorologist is a person who studies weather

3. Weather includes Temperature Air pressure Precipitation
Wind direction and speed

4. Water Cycle: the journey water takes as it circulates from Earth to sky and back again

5. Water Cycle Vocabulary
Accumulation
Evaporation transpiration
Condensation
Precipitation rain, snow, sleet, and hail
Accumulation surface runoff and subsurface runoff

6. Rain Gauges

7. Temperature scales
Metric
Standard
Boiling point
Freezing Point

8. Measuring Wind Wind is air moving sideways
Anemometer measures wind speed
Wind speed is measured in miles per hour (mph)

9. Weather Vanes/ Windsocks
A weather vane observes wind direction
A windsock shows direction and speed

10. Air Pressure The air around us has weight that can be measured.
We use units called pounds per square inch to identify air pressure.

11. Barometers High pressure indicates fair weather
Low pressure indicates changing, stormy weather

12. Humidity The measure of moisture in the air.
Hygrometers measure humidity.

13. Weather balloon

14. Weather Stations Real and Apps