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