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vocabulary 12 Erin

chapter 12 vocabulary words for scirnce

Weather The conditions of Earth's atmosphere at a particular time and place.
Atmosphere The envelope of gases that surround the planet.
Ozone A form of oxygen that has three oxygen atoms in each molecule.
Water Vapor Water in the form of a gas.
Photochemical Smog The brown haze that develops in sunny cities.
Acid Rain Rain is naturally acidic, but rain that contains more acid than normal is called.
Pressure The force pushing on a area or surface.
Air Pressure The result of the weight of a column of air pushing down on an area.
Barometer An instrument that is used to measure air pressure.
Mercury Barometer Consist of a glass tube open at the bottom end and partially filled with mercury.
Aneroid Barometer Has an airtight mateal chamber.
Altitude Or elevation, is the distance above sea level, th eaverage level of the surface of the oceans.
Jet Stream About 10 kilomaters above Earth's surface are bands of high-speed winds.
Troposphere You live in the inner, or lowest, layer of the Earth's atmosphere the ...
Stratosphere Extends from the topof the troposphere to avout 50 kilometers above Earth's surface.
Mesosphere Above the stratosphere, a drop in tempeture marks the beginning of the next layer.
Thermosphere extends from 80 kilometers above Earth's surface outward into space.
Ionosphere A lower layer. Begins about 80 kilometers above the Earth's surface and extends to about 400 kilometers.
Exosphere The outer portion of the thermosphere.
Electromagnetic Wave A form of energy that can move through the vacum of space.
Radiation The direct transfer of energy by electromagnetic waves.
Infrared Radiation A form of electromagnetic energy. Has wavelength that are longer than red light.
Ultraviolet Radiation The sun gives off this radiation. Which is an invisible form of energy with wavelengths that are shorter that violet light.
Scattering Dust particles and gases in the atmosphere reflect light in all directions.
Thermal Energy The TOTAL energy of motion in the particles of a substance.
Conduction The direct transfer of heat from one substance to another substancethat it is touching.
Convection The transfer of heat by the movement of fluid.
Wind The horizontal movement of air from an area of high pressure to an area of low pressure
Anemometer An instrument used to measure wind speed
Wind-Chill Factor The increased cooling a wind can cause ...
local wind Winds that blow over short distances.
sea breeze A lake breeze is a local wind that blows from an ocean or a lake.
land breeze The flow of air from land to a body of water.
global wind Winds that blow steadily from specific directions.
latitude The distance from the equater, measured in degrees.
Created by: 073215