freshwater quiz: earth science
Terms in this set (23)
how much of the earth's surface is covered with water?
earth is sometimes called what two things?
the blue planet or the water planet
how much of earth's water is saltwater?
how much much of earth's water is freshwater?
earth's water is constantly what?
the continuous process by which water moves from Earth's surface to the atmosphere and back
what are the water cycle's three major steps?
evaporation, condensation, and precipitation
is when liquid water changes to gas called water vapor
occurs when water vapor cools and changes back into liquid water
tiny droplets of water clump together
these water drops fall to earth as ______ - ______, _____, ______, _____
precipitation, rain, sleet, snow, or hail
____ precipitation falls back into oceans or lakes. other precipitation can either become ____ or _____
Most, runoff or groundwater
is there more freshwater or saltwater on earth?
there is more saltwater
true or false: most of earth's water is in the form of water vapor in the atmosphere
true or false: when water heats up and changes into gas, this is called evaporation
true or false: the energy source for the water is heat from the core
false! it is from the sun
how could a molecule of water that a dinosaur once drank can now be inside of you?
because the water cycle naturally recycles all of earth's water from the earth to the atmosphere & back to the water on earth is always changing the location
what is the main source of freshwater that we can use?
groundwater (since ice is frozen it is not readily usable
what are some examples of surface water?
lakes, rivers, and ponds
water in gas form
water below earths surface
are formed when water vapor in the air condenses into to tiny liquid water droplets that form on dust particles in the air
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