The Air Around You
The envelope of gases that surrounds the planet is known as the _______________.
atmosphere
__________ is the result of the weight of a column of air pushing on an area.
Air pressure
Which layer of the atmosphere is where all weather occurs?
Troposphere
The direct transfer of energy by electromagnetic waves is called ______________.
radiation
The increased cooling that wind can cause a person to feel is known as _____________.
Windchill factor
__________ is the condition of Earth's atmosphere at a particular time and place.
Weather
___________ is the distance above sea level.
Altitude
The second layer of the atmosphere, which contains the ozone layer is known as the ________________.
stratosphere
Energy travels to Earth as __________________, a form of energy that can move through the vacuum of space.
The movement of air parallel to Earth's surface is known as ____________.
wind
Where does the ocean get its energy?
Heat from the sun
As air pressure decreases, so does its ___________.
density
Why is the ozone layer warm?
It absorbs energy from the sun.
Dust-size particles and gases in the atmosphere disperse light in all directions in a process called ______________.
scattering
____________ measures the total energy of motion in the particles of a substance.
Thermal Energy
Which substance exists as both a liquid and a gas in Earth's atmosphere?
Water
The amount of mass in a given volume of air is known as its ____________.
Why is the ozone layer important?
It absorbs harmful ultraviolet radiation
Why does the clear daytime sky look blue?
Scattered light looks bluer than ordinary sunlight.
How is heat transferred mostly in our atmosphere?
By convection in the troposphere.
Which three (3) gasses are the most common found in Earth's atmosphere?
Oxygen, Nitrogen, and Carbon Dioxide
How can high altitudes make you short of breath?
The air is less dense which means the air that you breath has fewer oxygen molecules.
What causes brilliant light displays in the sky called auroras?
Particles from the sun strike atoms in the ionosphere.
What is the greenhouse effect?
The process by which the gases in air hold heat in Earth's atmosphere.
How are global winds different from local winds?
They occur over a large area.