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science book 3 ch. 2

all vocab words from chapter 2 of book 3 "weather and climate"

vocab worddefinitionhint
electromagnetic waves a form of energy that can move through the vaccum of space. They are classified according to wavelength (remember the spectrum?) book 3 section 1 pg. 36
radiation the direct transfer of energy by electromagnetic waves book 3 section 1 pg. 36
Visible light this type of electromagnetic radiation arrives in the form of colors you can see. it has the medium wavelenghth in this chapter book 3 section 1 pg. 37
infrared radiation has wavelenghths that are longer than red light. This type of electromagnetic radiation is not visible, but it can be felt as heat book 3 section 1 pg. 37
ultraviolet radiation an invisible form of radiation that is shorter than violet light. it can cause sunburns, eye damage, adn skin cancer book 3 section 1 pg. 37
scattering a process in which dust particles and gases in the atmosphere reflect in all directions book 3 section 1 pg. 38
greenhouse effect the process in which gases hold heat in the air book 3 section 1 pg. 39
tempature the average amount o fenergy of motion of each paticle of a substance book 3 section 2 pg. 43
thermal energy the total energy of motion in the particles of a substance book 3 section 2 pg. 43
thermometer a thin glass tube with a bulb on one end that contains liquid, usually mercury or colored alcohol. air tempature is measured with this. book 3 section 2 pg. 43
heat the transfer of thermal energy from a hotter object to a cooler object book 3 section 2 pg. 44
conduction the direct transfer of heat from one substance to another substance that it is touching book 3 section 2 pg. 44
convection the transfer of heat by the movement of a fluid book 3 section 2 pg. 44
the 3 ways heat is transferred conduction, convection, and radiation book 3 section 2 pg. 44
convection currents it is formed by the upward movement of warm air and the downward movement of cool air book 3 section 2 pg. 44
wind the horizontal movement of air from an area of high pressure to an area of low pressure book 3 section 3 pg. 47
anemometer a device that measures wind speed book 3 section 3 pg. 47
wind- chill factor the increased cooling a wind can cause book 3 section 3 pg. 47
local winds winds that blow over short distances book 3 section 3 pg. 48
sea breeze or lake breeze a local wind that blows from an ocean or a lake book 3 section 3 pg. 48
land breeze the flow of air from the land to a body of water book 3 section 3 pg. 48
global winds winds that blow steadily from specific directions over long distances book 3 section 3 pg. 49
coriolis effect the way the earth's rotation makes winds curve book 3 section 3 pg. 49
latitude distance from the equator measured in degrees book 3 section 3 pg. 50
jet streams a type of wind about 10 km abouve the earths surface are bands of high speed winds called _____________. book 3 section 3 pg. 52
water cycle the movement of water between the atmosphere and the earth's surface book 3 section 4 pg. 54
evaporation the process by which water molecules in liquid escape into the airas water vapor book 3 section 4 pg. 54
humidity a measure of the amount of water vapor in the air book 3 section 4 pg. 55
relative humidity the percentage of water vapor that is actually in the air compared to the maximum amount of water vapor the air can hold at a certain tempature book 3 section 4 pg. 55
psychrometer a device to measure relative humidity. has two thermometers, a wetbulb thermometer and a dry- bulb thermometer. book 3 section 4 pg. 56
condensation the process in which water vapor becomes a fluid book 3 section 4 pg. 57
dew point the tempature at which condensation begins book 3 section 4 pg. 57
cirrus whispy, feathery clouds book 3 section 4 pg. 58
cumulus clouds that look like fluffy, rounded piles of cotton book 3 section 4 pg. 58
stratus clouds that form in flat layers book 3 section 4 pg. 58
precipitation any form of water that falls from the clouds and reaches earth's surface book 3 section 5 pg. 61
droughts long periods of unusually low precipitation book 3 section 5 pg. 64
cloud seeding a method to modify precipitation so some form of precipitation will fall book 3 section 5 pg. 64
Created by: Meredith Daniel
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