AT
What is the main reason the Earth can support living things?
The Atmosphere
Global warming is a result of too much ____________________.
Greenhouse Effect
Atmospheric pressure changes with _________?
Altitude
What two regions is the Earth’s atmosphere divided into?
Homosphere and Heterosphere
What is a temperature gradient?
A Gradual Change In Temperature
What are the northern lights called?
Aurora Borealis
Atmosphere is the mass of ________ surrounding a planet.
Air
Define Pressure.
The force applied over a unit of area.
What is Radiation?
The transfer of energy by waves through air or empty space
In which region is the air uniform in its composition?
Homosphere
Which layer contains 75% of all the gas molecules in the atmosphere?
The Troposphere
What are the southern lights called?
Aurora Australis
Which two gases in our atmosphere are essential for life?
Oxygen and Carbon dioxide
What does a barometer measure?
Atmospheric pressure.
What do you call the transfer of heat energy from molecule to molecule by contact?
Conduction
Our atmosphere is divided into how many distinct layers?
Five
Ozone protects us from the _________ _________ of the sun by absorbing them before they reach the planet’s surface.
Ultraviolet Rays
What are the Northern & Southern Lights caused by?
Parts of the ionosphere overlap with Earth’s magnetic field at the north and south poles
What is Earth’s main source of energy?
The Sun
Who invented the original barometer?
Italian scientist Evangelista Torricelli
What are you doing when you heat something up?
You are transferring energy to it.
What is the border between each layer called?
A Pause
Which region of the atmosphere helps transmit radio signals?
The Ionosphere
The study of planets and their systems, including moons, rings, gas clouds, and so on is called?
Planetary Science
What is the process by which certain gases trap heat that radiates from Earth?
The Greenhouse Effect
Air pressure changes with ____________?
Weather
A measure of the energy of random motion in a substance’s molecules is called?
Temperature
What is the lowest layer of our atmosphere called?
The Troposphere
Where is the ionosphere located?
Within the upper portions of the mesosphere, the thermosphere, and the lower portions of the exosphere.
Earth is the only known planet that supports life because of _____________.
God’s marvelous design.