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39 Cards in this Set
- Front
- Back
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watershed
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an area of land in which water drains into a specific river.
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reservoirs
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an artificial lake to store water
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aquaducts
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channels that give people water
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dams
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built across rivers to create reservoirs
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Ocean
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a large body of salt water
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What % of Earth is covered by ocean?
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70%
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People use different natural ______ from the ocean for food, energy and recreation.
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resources
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What runs down hill and picks up salt from dirt and rocks?
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water
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How does salt get into the ocean?
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Water runs down hills and picks it up from the soil then rivers carry it to the ocean.
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What provides heat to evaporate fresh water from the ocean?
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Sun light
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What is the concentration of salt in the ocean?
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3.5%
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Where is most of the fresh water on Earth? Name the countries.
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Frozen ice sheets in Greenland and Antarctica
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Besides ice sheets, where else is fresh water frozen?
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in glaciers
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Fresh water FLOWS across Earth's surface in
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Rivers
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small to medium-sized bodies of water that are surrounded by land and hold fresh water
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lakes
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tiny droplets of water
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water vapor
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a large body of salt water
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ocean
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a slowly moving ice sheet
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glacier
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the process of a liquid turning into gas
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evaporation
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a huge slab of ice and snow covering a large area of land
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ice sheet
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water that contains little or no dissolved salts
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fresh water
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What are the three forms of water?
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liquid water (rain, rivers), solid water (snow, ice), water vapor (clouds, fog, mist)
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When liquid water turns into gas it is called?
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evaporation
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Moving air is called ____ or _____.
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sea breeze or land breeze
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What forms high in the sky from ice crystals?
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clouds
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How does rain come out of clouds?
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It falls down because of its weight.
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Snowflakes are formed when
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water vapor turns directly into solid water.
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The continuous movement of water between Earth's surface and the air is called the
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water cycle
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the movement of air from water to the land
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sea breeze
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the movement of air from land to water
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land breeze
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water that falls from the air to ground as rain, sleet, hail or snow
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precipitation
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when water changes from vapor to liquid form
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condensation
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a cloud that forms near or on the ground
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fog
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water changes from a liquid to a gas during
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evaporation
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In the water cycle, water vapor _____ in the air
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rises
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The change of water vapor (gas) to water droplets (liquid) is called
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condensation
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When water droplets get heavy enough they fall to the ground as
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rain
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If precipitation is frozen it is called
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hail or snow
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The type of precipitation (rain, hail or snow) depends on
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temperature
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