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weather

TermDefinition
weather the condition of earths atmosphere at a particular time and place
meteoroligist scientist who study the cause of weather and try to predict it
forecast a prediction of what the weather will be in the future
tempature the average amount of energy of motion in the molecules of a substance
convection the transfer of heat by movement of fluid
humidity a measure of the amount of water vapor in the air
relative humidity the percentage of water vapor in the air compared to the maximum amount the air can hold at that tempature
wind the horizontle movement of air from an area of high pressure to an area of lower pressure to an area of lower pressure
cumulus clouds that form less than 2 kilometers above the ground and look like fluffy rounded piles of cotton
stratus clouds that form in flat layers
cirrus wispy,feathery clouds made mostly of ice crystals that form at high levels,above about 6 kilometers
thermometer an instrument used to mesure tempature,consisting ofthin,glass tubes with a bulb on one end thatcontains a liquid
anemometer an instrument used to mesure wind pressure
phychrometer an instrument used to measure relative humidity,consisting of a wet-bulb thermeter and a dry-bulb thermometer
air mass a huge body of air that has simular tempature,pressure,and humidity throughout
front the area where air masses meet and do not mix
cold front when a cold air masses pushes against a warm air mass
warm front when a warm air mass pushes against a cold air mass
tornado a rapidly whirling,funnel-shaped cloud that reaches down from a storm cloud to touch earths surface leaving a destructive path
hurricane a tropical storm that has wind of 119 km per hour or higher typically about 100 km across
Created by: 3143097