Science Vocabulary Nov. 18

Front 1

weather

Back 1

condition of Earth's atmosphere at a particular time and place

Front 2

atmosphere

Back 2

relatively thin layer of gases that form Earth's outermost layer

Front 3

water vapor

Back 3

water in the form of a gas

Front 4

density

Back 4

meaurement of how much mass of a substance is contained ina given volume

Front 5

air pressure

Back 5

pressure caused by the weight of a column of air pushing down on an area

Front 6

barometer

Back 6

instrument used to measure changes in air pressure

Front 7

mercury barometer

Back 7

instrument that measures changes in air pressure, consisting of a glass tube particially filled with mercury, with its open end resting in a dish of mercury

Front 8

aneroid barometer

Back 8

instrument that measures changes in air pressure without using a liquid

Front 9

altitude

Back 9

elevation above sea level

Front 10

troposphere

Back 10

lowest layer of Earth's atmosphere

Front 11

stratosphere

Back 11

second lowest layer of Earth's atmospere

Front 12

mesosphere

Back 12

layer of Earth's atmosphere immediatly above the stratosphere

Front 13

thermosphere

Back 13

outermost layer of Earth's atmosphere

Front 14

ionosphere

Back 14

lower part of the thermosphere

Front 15

exosphere

Back 15

outer layer of the thermosphere

Front 16

electromagnetic waves

Back 16

wave that can transfer electric and magnetic energy through the vacuum of space

Front 17

radiation

Back 17

transfer of energy by electromagnetic waves

Front 18

infrared radiation

Back 18

electromagnetic waves with wavelengths that are longer than visible light but shorter than microwaves

Front 19

ultroviolet radiation

Back 19

electromagnetic waves with wavelengths that are shorter than visible light but longer than X-rays

Front 20

scattering

Back 20

reflection of light in all directions

Front 21

greenhouse effect

Back 21

trapping of heat near a planet's suface by certain gases in the planet's atmosphere

Front 22

thermometer

Back 22

outermost layer of Earth's atmosphere

Front 23

heat

Back 23

transfer of thermal energy from a warmer object to a cooler object

Front 24

convection

Back 24

transfer of thermal energy by the movement of a fluid

Front 25

conduction

Back 25

transfer of thermal energy from one particle of matter to another

Front 26

convection currents

Back 26

movement of a fluid, caused by differences in temperature, that transfers heat from one part of the fluid to another

Front 27

wind

Back 27

horizontal movement of air from an area of high pressure to an area of lower pressure

Front 28

anemometer

Back 28

an instrument used to measure wind speed

Front 29

windchill factor

Back 29

measure of cooling combined temperature and wind speed

Front 30

local winds

Back 30

winds that blow over short distances

Front 31

sea breeze

Back 31

flow of cooler air from over an ocean or lake toward land

Front 32

land breeze

Back 32

flow of air from land to a body of water

Front 33

global winds

Back 33

winds that blow steadily from specific directions over long distances

Front 34

Coriolis effect

Back 34

effect of Earth's rotation on the direction of winds and currents

Front 35

latitude

Back 35

distance in degrees north or south of the equator

Front 36

temperature

Back 36

how hot or cold something is

Front 37

thermal energy

Back 37

total kinetic and potential energy of all the particles of an object