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The Atmosphere

Vocabulary words for The Atmosphere Unit

TermDefinition
Atmosphere A homogeneous mixture of gases that surrounds the Earth.
Homogeneous uniform, unvaried, consistent
Air Pressure The measure of the force with which the air molecules push on a surface.
Altitude The height of an object above the Earth's surface.
Troposphere The layer of the atmosphere closest to Earth. Weather occurs here, we live here, and it is the densest layer.
Stratosphere The 2nd layer up from the Earth's surface. The ozone is located here so it warms up as you move upward.
Ozone A molecule made of 3 oxygen atoms. It absorbs dangerous UV radiation.
Mesosphere The 3rd layer of the atmosphere. It is the coldest layer and meteorites burn up here. There are also strong wind storms.
Thermosphere The layer of the atmosphere farthest away from Earth's surface. It absorbs solar radiation and the particles move very fast.
Radiation Heat from light. Energy moving thru space. The transfer of the Sun's energy as electromagnetic waves.
Conduction The transfer of thermal energy from one material to another by direct contact. Heat thru contact. Energy moving in solids.
Convection The transfer of thermal energy by the movement of a liquid or gas. Heat by moving gas or liquid.
Greenhouse Effect The Earth's heating process in which the gases in the atmosphere trap thermal energy.
Wind Moving air.
Coriolis Effect The curving of the wind due to Earth's rotation.
Trade Winds Winds that blow from 30 degrees latitude toward the equator.
Doldrums Area of low pressure around the equator. Very little wind.
Horse Latitudes 30 degrees north and south. Weak winds.
Westerlies Wind belt between 30 degrees and 60 degrees N and S latitude. The major air movement for the USA.
Polar Easterlies Wind belts that extend from the poles to 60 degrees latitude in both hemispheres.
Secondary Pollutants Pollutants that form from chemical reactions of primary pollutants or naturally occurring pollutants.
Primary Pollutants Pollutants put directly into the air by human or natural activity.
Asthma a chronic disease of the lungs.
Ionosphere The part of the thermosphere where there are electrically charged particles called ions.
Global Warming A rise in average global temperatures
Radiation Balance The balance between incoming energy and outgoing energy on Earth.
Jet Streams Narrow belts of high speed winds that blow in the upper troposphere and lower stratosphere
Sea Breeze Cool air moving toward the land due to an area of high pressure over the water and low pressure over the land.
Land Breeze Cool air moving towards the water due to an area of low pressure over the water and high pressure over the land
Acid Precipitation Precipitation that contains acids due to air pollution.
Created by: ppaull
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