Weather Review Battleship!
Air Basics
• As the temperature of a gas increases what
happens to its volume?
• Increases
Air Basics
• List the three important properties of air that
we discussed.
• has mass, takes up space, can exert force
Air Basics
• Define temperature
• Measurement of speed of molecular
movement
Air Basics
• As you increase altitude through the
atmosphere what happens to atmospheric
pressure?
• Decreases
Atmosphere Structure
• In which atmospheric layer does weather
occur?
• Troposphere
Atmosphere Structure
• What is the heat source for the troposphere?
• Heat re-radiating from the Earth’s surface
Atmosphere Structure
• Why does the stratosphere get warmer as
altitude increases?
• Ozone layer absorbs ultra violet radiation
Atmosphere Structure
• Why does the temperature in the troposphere
decrease with altitude?
• Farther from the surface which is the heat
source
Water Properties
• What type of molecule is water considered to
be?
• Polar covalent
Water Properties
• Water sticks to other things is called…
• Adhesion
Water Properties
• Water sticks to other water is called…
• Cohesion
Water Properties
• Water has a high specific heat, what does that
allow water to do?
• Absorb a lot of thermal energy without
changing temperature
Water Properties
• Water is the only molecule in the known
universe to do what as a solid?
• Float!
Relative Humidity
• Relative humidity is a measurement of the
amount of water in the air in comparison to
what?
• The ability of air to hold water
Relative Humidity
• What do we call it when air has reached 100%
relative humidity?
• Saturation or dew point
Relative Humidity
• Warm air has a _____ ability to hold water
than cool air.
• Higher
Relative Humidity
• If 1 kg of 10OC air has the ability to hold 7g of
water and is currently holding 3.5g, what is
the air’s relative humidity?
• 50% relative humidity
Relative Humidity
• If 35OC air contains 7g of
water, at what
temperature will that air
reach dew point (100%
relative
humidity/saturation)?
• 10OC
Cloud Formation
• Where does air have to be moving in order for
there to be cloud formation?
• Up or rising
Cloud Formation
• Clouds will form when rising air reaches its
_______.
• Dew point
Cloud Formation
• This type of cloud is whispy and light and
forms high in the troposphere.
• Cirrus
Cloud Formation
• This must be present in the atmosphere
where water is trying to condense. Without it,
no cloud will form.
• Seeds or condensation nuclei or tiny solid
particles
Cloud Formation
• Why don’t clouds always produce rain?
• Droplets have to become large enough for
gravity to pull them out of the cloud.
Cloud Formation
• List the four ways to lift air and form clouds.
• surface heating, orographic lifting,
convergence, frontal wedging
Air Masses and Fronts
• What are the two characteristics we use to
describe an air mass.
• Temperature and moisture (humidity)
Air Masses and Fronts
• List four different types of air masses.
• Maritime tropical, maritime polar, continental
tropical, continental polar
Air Masses and Fronts
• What causes air masses to have the
characteristics of temperature and humidity
that they have?
• Where they originally come from
Air Masses and Fronts
• What do we call it when two air masses meet?
• a front
Air Masses and Fronts
• What type of weather would you expect to
find along a cold front?
• Stormy weather
Air Masses and Fronts
• What type of weather would you expect to
find along a warm front?
• Long term steady precipitation
Wind
• Air always moves from areas of _____
pressure to areas of _____ pressure.
• High to low
Wind
• What type of pressure and weather would you
expect if air is rising?
• Low, cloudy
Wind
• What type of pressure and weather would you
expect if air is falling?
• High, clear
Wind
• What do we call the actual temperature that
humans feel due to wind?
• Wind chill
Wind
• What causes a sea breeze?
• Land warming more then water, rising and
causing low pressure, air moves in from high
pressure sea
Wind
• What do chinook winds cause on the leeward
side of mountains?
• Warmer temperatures
Global Winds
• What causes global winds?
• Air heating at the equator
Global Winds
• What is the coriolis effect?
• The effect that causes the movement of air on
earth to curve due to earth’s rotation.
Global Winds
• What is the jet stream?
• A river of fast moving high altitude air
Tornadoes and Hurricanes
• What characteristic of a storm does a hook
echo on Doppler radar indicate?
• Rotation
Tornadoes and Hurricanes
• What property does the center of a tornado
have that causes the “sucking” effect of the
tornado?
• Extreme low pressure
Tornadoes and Hurricanes
• What is the “fuel” for a growing hurricane?
• Warm ocean water
Tornadoes and Hurricanes
• What characteristics do the eye of a hurricane
posses?
• Low pressure, calm
Tornadoes and Hurricanes
• Why do hurricanes only occur during certain
months of the year?
• Ocean water is only warm enough to spawn
hurricanes during certain times.
Thunder and Lightning
• What charge at the bottom of storm clouds
causes lightning to strike the ground?
• Negative
Thunder and Lightning
• What causes thunder?
• Rapidly heating and expanding air