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vocab

science weather

QuestionAnswer
Air Pressure - the measure of the force with which air molecules push on a surface
Altitude - elevation (height) above sea level
Troposphere - lowest layer of Earth's atmosphere; 0-17 km above Earth's surface, site of weather, organisms, contains most atmospheric water vapor.
Stratosphere - 2nd layer of atmosphere; extends from 10 to 30 miles up; location of ozone layer; absorbs 95% of Ultraviolet radiation; temperature increases with altitude increase.
Thermosphere - the fourth layer of the atmosphere, in which temperature increases as altitude increases
Mesosphere - middle layer of the atmosphere; 51-85 km above Earth’s surface; coldest layer, this is where meteors burn up
7. Exosphere - the outer layer of the thermosphere, extending outward into space.
8. Atmospheric Gases - nitrogen makes up 78%, 21% oxygen, and remaining 1% is carbon
9. Nitrogen (N2) - most abundant gas in the atmosphere (78%)
10.Oxygen (O2) - gas that makes up 21% of the air in Earth's atmosphere. It passes into the bloodstream at the lungs and travels to all body cells.
11. Carbon Dioxide (CO2) - a greenhouse gas: a gas that absorbs and radiates heat
12.Trace Gases - gasses such as hydrogen, helium, carbon dioxide and argon that exist in very small quantities in the atmosphere; gases that make up less than 1% of Earth's atmosphere
13.Water Vapor - water in the form of a gas
14.Fossil Fuels - a natural substance formed from the buried remains of ancient organisms that can be used as a source of energy
15.Greenhouse Gases - gasses in Earth's atmosphere that trap heat near the surface
16.Water Cycle - the continuous process by which water moves from Earth's surface to the atmosphere and back
17.Evaporation - the change of a substance from a liquid to a gas
18.Condensation - the change from a gas to a liquid
19.Precipitation - any form of water that falls from clouds and reaches Earth's surface (rain or snow or hail or sleet or mist).
20.Transpiration - evaporation of water from the leaves of a plant
21.Crystallization - the process by which a substance becomes a solid, sort of like freezing.
22.Surface Runoff - water that flows over land until it reaches lakes, rivers, or other areas
23.Groundwater Flow - water that is flowing beneath Earth’s surface
24.Dew - water that has condensed on a cool surface overnight from water vapor in the air
25.Frost - ice formed when water vapor changes directly into ice crystals
26.Ozone (O3) - part of Earth's upper atmosphere; it protects people by absorbing harmful rays from the sun.
27.Greenhouse Effect - a warming of Earth's surface and the air above it. It is caused by gasses in the air that trap energy from the Sun
Created by: user-1577792
 

 



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