All Around Us
The mass of air surrounding a planet.
What is atmosphere?
The process by which certain gases trap heat that is radiated from the Earth.
What is the Greenhouse Effect?
The force (weight) applied over a unit of area.
What is Pressure?
Energy that is transferred from one object to another due to temperature differences.
What is heat?
The border between each layer of the atmosphere.
What is a pause?
Define atmosphere.
The mass of air surrounding our planet.
Two critical roles that carbon dioxide has that are essential on our planet.
1) Helps regulate Earth's temperature (traps infrared light from the Earth)
2) Helps plants synthesize food (photosynthesis)
The element used in barometers to measure air pressure.
What is Mercury?
Heat transferred through direct contact is called this.
What is conduction?
This layer contains the ozone layer.
What is the Stratosphere?
This gas makes up the majority of the Earth's atmosphere.
What is Nitrogen?
True or False: If the carbon dioxide concentration on earth were higher, the Earth would be much colder and would not be able to support life.
False...the Earth would be much hotter
This is the reason we don't feel the Earth's atmosphere pressing down on us.
What is that air pressure within us is also pushing out and the pressures cancel each other out?
The transfer of heat energy by waves through air or empty space.
What is radiation?
This layer is the most dense, containing 75% of all gas molecules in the atmosphere.
What is the Troposphere?
The two main things the Earth's atmosphere shields us from.
What are: 1)Meteroids/space debris & 2) Harmful UV rays?
Too much of the greenhouse effect is said to cause this.
Global warming
Between the top of Mt. Everest and Mexico City, this location experiences less air pressure.
What is Mt. Everest?
The measure of the energy of the random motion of the molecules within a substance.
What is temperature?
Explain the temperature gradient in the troposphere
As altitude increases, the temperature decreases.
Oxygen makes up this percent of the Earth's atmosphere.
What is 21%?
Two things that put carbon dioxide into the air.
What are 1) Combustion reactions and 2) normal life processes of many creatures?
The amount of pressure our atmosphere exerts on every square inch it touches at sea level.
What is 14.7 lbs per square inch (PSI)?
The gradual change in temperature in our atmosphere is called this.
What is the temperature gradient?
The region of the atmosphere that helps transmit radio signals
What is the Ionosphere?