4 Elements of Weather PowerPoint Note Taker
Class Work Grade: ____/30
Name: ________________________________
HR: _________________________
Earth Science Standard S4E4. Students will analyze weather charts/maps and collect weather data to predict
weather events and infer patterns and seasonal changes. a. Identify weather instruments. b. Use a weather
map to identify fronts, temperature and precipitation.
Weather
Weather is the _________________ of the air around us.
WHAT is Weather?
W = ___________
H = ____________
A = ______ __________________
T = ________________________
Wind
Wind is simply _______ in ______________. It is caused by the ____________ heating of the Earth’s surface
by the ________. Earth’s different surfaces absorb heat differently. ___________ air rushes under
__________ air and creates wind.
Measuring Wind
Wind ___________ is measured with an _______________________. Wind direction is measured with a
________________ _________. The arrow points to the direction the wind is coming from. The effects of
different wind speeds are described on the ___________________ Wind Scale.
Humidity
Humidity is the amount of ____________ ___________ in the air. Warm and hot air can hold _________
water vapor. Cold air does not hold as much water vapor. Humidity is measured with a __________________.
Air Pressure
Air pressure is the _____________ of _______ pushing on an area. As you go higher in the air, there is less air
pushing __________. As air is heated, the molecules move ____________ and are ____________ apart. As air
cools, the molecules move ______________ and are ____________ together.
Cold Air and Warm Air
Colder air has ___________ pressure than warm air because the molecules are closer together or more
____________. Because cold air is more dense than warm air, it __________, while warm/hot air
___________.
Measuring Air Pressure
Air pressure is measured with a ________________.
Air Pressure and Weather
Differences in air pressure are shown on a weather map with circular lines called ________________. High
pressure areas generally have _______, _______ weather. Low pressure areas have ______ weather.
Air Pressure Symbols
A blue _____ is the symbol for high pressure areas on a weather map. This means dry, good weather.
H = ___________ weather.
A red _____ is the symbol for low pressure areas on a weather map. This means wet weather.
L = ________ weather.
Air Temperature
As the sun’s energy heats up Earth’s surface, _____ _________________ move further apart. Earth ________
heat energy during the day and _________ heat energy at night.
Temperature is measured with a _______________________.
An ________________ measures wind speed.
A ____________ _______ measures wind direction
A _________________ measures humidity.
A ______________________ measures air pressure.
A _________________ measures temperature
A _______ _____________ measures rain fall.
Weather
Wind, Humidity, Air Pressure, Temperature. Weather is the ________________ of the _______ around us.
Constructed Response
Use your notes and our class discussion to create a T-chart comparing cold air and warm air. Include at least 3
characteristics on each side.
Cold Air
Warm Air
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