4th grade Severe Weather

STUDY
PLAY
Lightning
large, electrical spark moving between areas of opposite charges which heats the air
barometer
an instrument used to measure air pressure
anemometer
an instrument used to measure wind speed
winds
movement of air from an area of high pressure to an area of low pressure
precipitation
any form of water that falls to the Earth from clouds as rain, sleet, snow, or hail
rain gauge
an instrument used to measure precipitation
thermomether
an instrument used to measure temperature
meteorologist
a person that studies weather and climate
thunder
when hot air instantly expands from lightning and then cooler air rushes in with a crash
typhoons
hurricanes that happen in the western Pacific Ocean
Tornado
a funnel shaped cloud of swirling winds that reaches the ground. winds can reach 250 miles per hour
Thunderstorm
often occurs when a large, warm air mass quickly rises above a cold air mass
Blizzard
A snowstorm with strong, freezing winds and blowing snow
Weather Forecast
a prediction of future weather conditions
humidity
the amount of water vapor or moisture in the air