Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
What is the composition of earth's atmosphere? |
Earth's atmosphere consists of nitrogen, oxygen, carbon dioxide, water vapor, and other gases, as well as particles of liquids and solids. |
|
|
How is the atmosphere a system? |
Events in one part of the atmosphere affect other parts of the atmosphere. |
|
|
List the parts of the atmosphere that interact. |
The sun, air, temperature, wind |
|
|
Weather |
The condition of earth's atmosphere at a particular time and place. |
|
|
Atmosphere |
The envelope(or layers) of gases that surrounds the planet |
|
|
Water Vapor |
water in the form of a gas |
|
|
What are some properties of air |
Air has density and pressure. |
|
|
What instruments measure air pressure. |
A barometer. Two types are- Mercury and Aneroid |
|
|
How does altitude affect air pressure and density? |
Air pressure decreases as altitude increases. As air pressure decreases, so does density.Air at sea level has more pressure and density than air at the top of a mountain. |
|
|
Density |
amount of mass in a given volume of air |
|
|
Air pressure |
the pressure caused by the weight of a column of air pushing on an area. |
|
|
Barometer |
an instrument used to measure changes in air pressure |
|
|
Mercury barometer |
an instrument that measures changes in air pressure, consisting of a glass tube partially filled with mercury, with an open end resting in a dish of mercury. |
|
|
Aneroid barometer |
an instrument that measures changes in air pressure without using liquid |
|
|
Altitude |
elevation above sea level |
