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The Water Cycle

5th Grade Earth Science

What percentage of Earth's water is in the oceans? 97%
What percentage of Earth's water is fresh water? 3%
Of the freshwater present on Earth, what percentage is found in rivers, the atmosphere, soil, and lakes? 0.5%
How much of Earth's freshwater is trapped in ice? 2%
How much of Earth's freshwater is found in groundwater? 0.5%
Define rain Liquid water that is condensed from water vapor in the atmosphere and falls to Earth in drops.
Define snow Precipitation in the form of ice pellets created when rain freezes as it falls to Earth from the atmosphere
Define recycling to use again
Define water cycle The global water-recycling system. Water evaporates from Earth's surface, goes into the atmosphere, and condenses. It returns to Earth's surface as precipitation in a new location.
Describe the water cycle briefly. 1) water evaporates from Earth's surface and goes into the atmosphere. 2) water in the atmosphere moves to a new location. 3)the water returns to Earth's surface in a new location. 4) the new location gets a fresh supply of water.
What powers, or drives, the water cycle? the sun
Explain evaporation. the process by which liquid water changes to a gaseous state, known as water vapor
What causes evaporation? the sun
Does water just evaporate from bodies of water? If so, name other places evaporation can occur. No, water also evaporates from soil, wet city streets, plants, animals, and ANYWHERE there is water.
Of what is water vapor composed? individual water molecules
Explain how condensed water is formed. Water vapor enters the air, it cools as it rises and condenses (forms condensation), changing the water vapor to liquid water.
What water condenses, what is happening? Water vapor molecules changes forms of matter from gaseous (vapor) to liquid (condensation)
When water is condensed, in what form is it present in the atmosphere? clouds, fog, and dew
What causes precipitation? Clouds filled with condensed water obtained via evaporation allow the condensed water (liquid) to fall to earth in the form of rain.
Why does some condensed water leave clouds in the form of sleet or hail and not rain? When the temperature is very cold, the condensed water freezes as it falls from the clouds, producing sleet or hail (frozen precipitation).
Define sleet Precipitation in the form of ice pellets created when rain freezes as it falls to Earth from the atmosphere
Define hail Precipitation in the form of small balls or pellets of ice.
Describe the difference between a large and a small water cycle. A large water cycle moves water to a new location and takes a longer amount of time than a small water cycle. A small water cycle recycles water back to its starting place quicker than a large water cycle because the water travels a shorter distance.
What force causes condensed water to fall from clouds? gravity
Created by: MsMisko44