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27 Cards in this Set
- Front
- Back
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hydrosphere |
all water on, or around earths surface |
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fresh water |
water with no salt (lakes, rivers, streams) |
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salt water |
water with salt minerals in it (oceans/seas) |
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aquifer |
layer of rock that contains ground water |
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ground water |
water that is stored in rocks underground |
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evaporation |
heating of liquid water that converts liquid into water vapor |
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condensation |
the cooling of water vapor to produce liquid water |
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transpiration |
the release of water vapor through the leaves of plants |
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precipitation |
water falling to the ground through rain, hail, sleet or snow |
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run-off-water |
that is pulled by gravity across lands surface |
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collection |
when water after precipitation gathers either in large bodies of water or underground as ground water |
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what are earths 4 systems? |
hydrosphere: water geosphere: all the land on earth biosphere: all living things on earth atmosphere: all gas in, on or around earth |
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what is the most abundant substance on earths surface? |
water |
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how much of the earth is water? |
more than 70% |
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what percentage of water on the earth is salt water? |
97% |
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what is the percentage of fresh water? |
3% |
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how much freshwater is frozen in polar ice caps? |
70% |
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how much freshwater is underground? |
30% |
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how much freshwater is found on the surface and readily available for those who need it? |
less than 1% |
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Do all living things need water to survive? |
yes |
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Does water water provide a habitat for some organisms to live? |
yes |
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does water help maintain earths temperature and climate? |
yes |
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What is the water cycle? Look at your diagram! |
evaporation/transpiration precipitation run off collection |
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where is ground water stored? |
in aquifers |
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what are the ways to get ground water to the surface? |
build a well dig until you reach the water table plants and use their roots to reach to the ground water |
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what dangers do hurricanes present? |
flooding high winds large amounts of rain stormsurges |
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what are some methods we use to save towns from natural disasters like hurricanes? |
wetlands- able to slow storm surges from ocean levees- able to prevent flooding from rivers sea walls- able to slow storm surges from oceans stilts- able to withstand flooding and stormsurges |
