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Transcript of Science Weather
By: De'Anna Jahnay Jones Cold front- it forms when a cold air mass moves under a warm air mass- they bring heavy rain, thunderstorms, and sometimes snow
Warm front- it forms when a warm air mass moves up and over a cold air mass- they bring rain, drizzle, and sometimes clear weather
Stationary front- it forms when 2 air masses meet and do not want to move- they bring clear weather
Occluded front- it forms when 2 cold air masses move toward each other, warmer air is between them and pushed upward- they bring plenty of rain and plenty of snow A Jet Stream is a type of wind
It is about 10 miles above the ground
The wind speed is about 100, or 200 miles per hour Air Air grows when it is heated
Air shrink's when they get cold
Air moves in a circle called a circulation Clouds there are 3 different types of clouds clouds are made up of tiny dust particles, ice crystals, and water droplets
clouds have precipitation and they fall as Rain, Snow, Sleet, or Hail
Stratus clouds are flat and featureless, appearing as layered sheets.
Cumulus clouds are puffy, like cotton floating in the sky.
Cirrus clouds are thin and wispy, appearing high in the sky. Lightning is usually produced by cumulonimbus clouds
Lightning can be a lot of different colors
lightning strikes in seconds Clouds that produce rain Nimbus or nimbo means rain
You add nimbo or nimbus to the end of a type of cloud and you get a type of rain cloud
Example: nimbostratus Westerlies 30 ° and 60 ° latitude
they move North to South Above 60 ° latitude
they go East to West Easterlies El Nino and La Nina La Nina is the opposite of El Nino
El Nino and La Nina comes every 3-7 years Wind Vane is a instrument that measure's the direction of the wind
Thermometer measure's the air temperature
Barometer measure's air pressure
Anemometer measures wind speed
Rain Gauge measure's the amount of rain