Atmosphere
Air Pressure
Transfer of Heat
Vocab
100
What is the first layer of the atmosphere?
What happens in this layer?
Troposphere & Weather
100
What is air pressure?
The weight of a column of air pushing down on an area.
100
What is Conduction?
Give an example.
The transfer of heat by direct touch.
Touching a hot burner on a stove.
100
What's the difference between weather and climate?
Weather - the condition of the air at a certain time and place
Climate - how cold or wet a place is over a long period of time.
200
What is the second layer of the atmosphere?
What is important about this layer?
Stratosphere
Contains the ozone layer
200
Where is air pressure the highest?
At Earth's surface.
200
What is convection?
The transfer of heat by the movement of molecules in gas or liquid.
200
What does precipitation mean?
Different forms of water
300
What is the third layer of the atmosphere?
Tell me two facts about this layer.
Mesosphere
Protects us from meteoroids and it is the coldest layer.
300
How does air pressure change as altitude increases?
The higher the altitude, the less pressure there is.
300
What is radiation?
The transfer of heat by electromagnetic waves.
300
What does humidity mean?
The amount of moisture or water vapor in the air.
400
What is the fourth layer of the atmosphere?
Tell me two facts about this layer.
Thermosphere
The layer with the highest temperatures
The northern lights appear in this layer.
It contains the International Space Station.
400
What happens to the molecules in air as altitude increases?
The molecules are more spread out, making the air less dense.
400
Give an example of Convection.
-heater in a car
-hair dryer
-boiling water
-air fryer
400
What does Evaporation mean?
the process by which water changes to a gas
500
What is the outermost layer of the atmosphere?
What happens in this layer?
Exosphere
Satellites orbit the Earth
500
Why do airplanes need to pressurize their cabins?
If they did not pressurize the cabins, there would be less dense air available on the plane. This would make it difficult to breathe for the passengers.
500
Give an example of radiation.
-sun heating the Earth
-feeling heat from a campfire
500
What does condensation mean?
the process by which a gas changes to a liquid