Chapter 6 Lesson 3 Notes
Main Idea: Scientists gather data about
temperature, humidity, wind, and air
pressure. They use this information to
develop weather forecasts.
1) An air mass is a body of air that has
about the same temperature and
moisture throughout.
2) A thermometer measures air
temperature in degrees Celsius or
degrees Fahrenheit
3) A rain gauge measures the amount of
precipitation that has fallen in an area.
4) An anemometer records wind speed
in kilometers per hour or miles per
hour.
5) A barometer measures air pressure in
units called millibars.
6) A warm front forms when warm air
moves into an area. Steady light rains
are common along warm fronts.
7) A cold front forms when cold air
moves into an area. Heavy rain often
forms along a cold front.
8) Meteorologists are scientists who
study weather.
Summary
1) Weather involves different variables
interacting in the atmosphere. These
include temperature, amount of water
vapor in the air, wind, wind, and air
pressure.
2) Air masses form in the troposphere.
These air masses meet to form fronts,
along which weather changes occur.
3) Different kinds of technology are used
to predict the weather, including radar,
satellites, and weather balloons.