WEATHER. By: Mrs. Nicholson. How Clouds Form. How Clouds Form. The sun heats the ground. The warm ground heats the air above. Water evaporates from oceans, rivers, the ground or wherever water is. Warm air rises carrying water vapor with it.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
By: Mrs. Nicholson
The warm ground heats the air above.
Water in the form of a gas is water vapor.
Evaporate means to change from a liquid state to a gas.
The word cirrus comes from the Latin word for a tuft or curl of hair.
Cirrus clouds are very wispy and feathery looking.
Cirrus clouds are composed of ice crystals and are so thin that sunlight can pass right through them.
The word stratus comes from the Latin word that means "to spread out."
Stratus clouds are horizontal, layered clouds that stretch out across the sky like a blanket. Sometimes a layer of warm, moist air passes over a layer of cool air. Stratus clouds often form at the boundary where these layers meet.
The word cumulus comes from the Latin word for a heap or a pile.
Cumulus clouds are puffy in appearance. They look like large cotton balls.
Cumulus clouds usually form when warm, moist air is forced upward. As this air rises, it is cooled. If it is cooled below its dew - point temperature, condensation will occur.
boundary between two air masses
An anemometer is an instrument used to measure wind speed.
A barometer is an instrument used to measure air pressure.
A hygrometer is a weather instrument used to measure air humidity.
A rain gauge is an instrument used to measure the amount of precipitation.
A thermometer is an instrument used to measure temperature.
Temperature is measured in Fahrenheit or Celsius degrees.
A wind vane is an instrument used to measure wind direction.
More Information on Weather Instruments
A violently rotating storm of small diameter;
It is produced in a very severe thunderstorm
Appears as a funnel cloud extending from the base of a Cumulonimbus to the ground.