The Water Cycle
18
The Water Cycle “The itsy bitsy spider went up the water spout. Down came the rain and washed the spider out. Up came the sun and dried up all the rain, and the itsy bitsy spider went up the spout again.”
description
The Water Cycle. “The itsy bitsy spider went up the water spout. Down came the rain and washed the spider out. Up came the sun and dried up all the rain, and the itsy bitsy spider went up the spout again.”. Water Cycle. - PowerPoint PPT Presentation
Transcript of The Water Cycle
The Water Cycle“The itsy bitsy spider went up the water
spout. Down came the rain and washed the spider out. Up came the sun and dried up all the rain, and the itsy bitsy spider went up the
spout again.”
Water CycleThe continuous movement of water on, above, and below the surface of the Earth.
There are many partsto the water cycle!
CondensationThe change of the physical state of matter from gas form into liquid form.
Water vapor turns into wateron the outside of a glass.
PrecipitationAny form of condensation that falls under gravity which includes rain, sleet, snow, and hail.
EvaporationThe process by which water is converted from its liquid form to its vapor form.
Run-OffThe flow of water that occurs when excess water from rain flows over the land.
Occurs whenwater does not soak into theground.
DroughtAn extended period of time when a region notes a deficiency in its water supply.
Single most common cause of food shortage.
The big drought of the U.S.was called the “Dust Bowl”of the 1930’s.
MeteorologistsScientists who study the Earth’s
atmosphere.
Air Pressure BarometerThe force exerted on you by the weight of tiny particles of air; also known as an air mass.
The instrument used to measure air pressure.
Humidity HygrometerThe amount of water vapor in the air.
Hint hint: The stuff that makes your hair frizzy, girls!
The instrument used to measure humidity.
How much vapor is in the air?
Temperature ThermometerA physical property of matter that expresses the common notions of hot and cold.
The instrument used to measure temperature.
ThunderstormWeather system that is formed when a more dense air mass meets a less dense air mass.
CirrusClouds that signal a change in the weather and are wispy with feather like edges.
CumulusClouds that signal fair weather but can bring rain and are rounded, white, and puffy.
StratusClouds that signal rain and block sunlight and are flat bottomed gray clouds.
CumulonimbusClouds that signal thunderstorms and are tall, dense, and dark grey.
ElevationThe height of a geographic location above a fixed reference point.
Convection A form of heating that is responsible for
warm air rising.
