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12 Cards in this Set
- Front
- Back
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How much of earth is covered by h2o |
71% |
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Name the four oceans from largest to smallest |
Pacific Atlantic Indian arctic |
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Define salinity |
A measure of the amount of dissolved salts in a given amount of liquid |
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What are the three parts of the water cycle |
Condensation evaporation pricipitation |
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Temperature zones in the ocean |
Surface zone deep zone thermocline |
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How did the first oceans form |
Earth cooled enough for water vapor to condense. The water began to fall like rain |
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Define condensation |
As water vapor rises into the atmosphere it cools and interacts with dust particles. The water vapor turns to water. |
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Evaporation |
The sun heats liquid water, causing it to rise into the atmosphere as water vapor. This physical change from a liquid to a called evaporation. Oceans lakes rivers rain plants animals and other sources |
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Precipitation |
When water droplets become heavy enough they fall back to earths surface |
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How does climate effect salinity |
Coastal water in Hotter, drier climates = higher salinity Heat increases evaporation leaving salt behind
Coastal water in cooler, humid climates = lower salinity Fresh water from streams & rivers runs into the ocean
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Water movement affects salinity |
Slower moving water develop higher salinity
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Surface temperature changes |
Ocean along equator are warmer because of more direct sunlight than areas closer to poles
Surface zone temperatures vary depending on time of year |
