Weather - 7th Grade Chapters 3 and 4

36 terms by cgrubbs 

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WINDS

caused by differences in air pressure

PRECIPITATION

any form of water that falls from the clouds

PREVAILING WESTERLIES

wind belts that push air west to east

PSYCHROMETER

tool used to measure relative humidity

WARM FRONT

warm air mass overtakes a cold air mass

MARITIME TROPICAL

air mass that would bring warm mosit weather

METEOROLOGIST

scientists who study weather

ANTICYCLONE

has generally dry and clear weather

ISOBARS

lines on the map joining places that have the same air pressure

DROUGHT

long period of little/less rainfall

LOCAL WINDS

caused by unequal heating in a small area

CLOUD FORMATIONS

requires 2 conditions: cooling of air and presence of particles

STORM SURGE

a dome of water that sweeps across the coast where a hurricane lands

STATIONARY FRONT

warm air mass and a cold air mass meet and neither can move the other

COLD FRONT

when a rapidly moving cold air mass overtakes a slow-moving warm air mass

CONVECTION

most of the heating of the troposphere because cold air si more dense than warm air

OZONE

absorbs most of Earth's ultraviolet radiation

STORM

violent disturbance in the atmosphere

DOLDRUMS

weak winds and rising air

HURRICANES

storms that usually form over warm ocean water

INFRARED RADIATION

most of the energy that heats Earth's atmosphere

GLOBAL WINDS

winds that blow from certain directions over long distances

STRATUS CLOUDS

layered clouds that cover much of the sky

CORIOLIS EFFECT

Earth's rotation that causes winds to curve

GREENHOUSE EFFECT

Process by which gases hold heat in the atmosphere

WIND SPEED

small lines at the end of the shaft that represents wind direction on a weather map

RADIATION

heat from the sun

ISOTHERMS

places that have the same temperature on a weather map

LAKE-EFFECT SNOW

cold, dry air blows over large lakes and then over land

CIRRUS

high, feathery clouds

CUMULONIMBUS

large clouds that often produe thunderstorms

TORNADO ALLEY

Texas and Kansas

EVACUATE

leave an area temporarily

THERMAL ENERGY

total energy of motion

CONTINENTAL POLAR

Cold, dry air in Northern US in winter

TORNADO

funnel shaped cloud that touches Earth's surface

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