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The Water Cycle
5th Grade Earth Science
| Question | Answer |
|---|---|
| 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
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