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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.
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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 The continuous movement of water on, above, and below the surface of the Earth. There are many parts to the water cycle!
Condensation The change of the physical state of matter from gas form into liquid form. Water vapor turns into water on the outside of a glass.
Precipitation Any form of condensation that falls under gravity which includes rain, sleet, snow, and hail.
Evaporation The process by which water is converted from its liquid form to its vapor form.
Run-Off The flow of water that occurs when excess water from rain flows over the land. Occurs when water does not soak into the ground.
Drought An 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.
Meteorologists Scientists who study the Earth’s atmosphere.
Air Pressure Barometer The 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 Hygrometer The 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 Thermometer A physical property of matter that expresses the common notions of hot and cold. The instrument used to measure temperature.
Thunderstorm Weather system that is formed when a more dense air mass meets a less dense air mass.
Cirrus Clouds that signal a change in the weather and are wispy with feather like edges.
Cumulus Clouds that signal fair weather but can bring rain and are rounded, white, and puffy.
Stratus Clouds that signal rain and block sunlight and are flat bottomed gray clouds.
Cumulonimbus Clouds that signal thunderstorms and are tall, dense, and dark grey.
Elevation The height of a geographic location above a fixed reference point.
Convection A form of heating that is responsible for warm air rising.
