Weather and Weather Instruments

Mrs. Sury

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

Weather includes

• Temperature• Air pressure • Precipitation • Wind direction and speed

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

again

Water Cycle Vocabulary

• Accumulation• Evaporation transpiration• Condensation• Precipitation rain, snow, sleet, and hail• Accumulation surface runoff and

subsurface runoff

Rain Gauges

Temperature scalesMetric Standard

Boiling point

Freezing Point

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

Weather Vanes/ Windsocks

• A weather vane observes wind direction• A windsock shows direction and speed

Air Pressure

• The air around us has weight that can be measured.

• We use units called pounds per square inch to identify air pressure.

Barometers

• High pressure indicates fair weather• Low pressure indicates changing, stormy

weather

Humidity

• The measure of moisture in the air.• Hygrometers measure humidity.

Weather balloon

Weather Stations

Real and Apps