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Ocean Facts

Ocean Facts . Chapters 19-21, read them!. Sonar allows us to know the depths on the ocean floor. Ocean Floor Sediment. Where do they come from? Rivers, waves, dead organisms Heavier sediments sink to bottom faster Study using CORE SAMPLE. What is ocean water made of?.

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Ocean Facts

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  1. Ocean Facts Chapters 19-21, read them!

  2. Sonar allows us to know the depths on the ocean floor

  3. Ocean Floor Sediment • Where do they come from? • Rivers, waves, dead organisms • Heavier sediments sink to bottom faster • Study using CORE SAMPLE

  4. What is ocean water made of? • Ocean is 96.5% pure water • 3.5 % are dissolved solids • Called SEA SALTS • Volcanoes • Weathering of rocks • Chemical reactions between sea water and sea-floor rocks

  5. Solids in ocean

  6. Gases in the ocean • Oxygen • Nitrogen • Carbon Dioxide • Plants • Rivers/streams • Atmosphere • Volcanoes • Animals in ocean

  7. Carbon Dioxide • What did we learn at the Ocean Institute about Carbon Dioxide and the Ocean?

  8. Salinity of the Ocean • Amount of salt and dissolved solids • 3.5% saline in Ocean • 0.1% in freshwater

  9. Why can’t we drink salt water? • Interestingly, the proportion of minerals and salts in human tissue is very similar to the composition of seawater. The adult human body contains enough salt to fill about three salt shakers, but the salt is constantly lost through bodily functions like sweating, crying, urinating, etc. It is essential to replace this lost salt, but not to over-replace. We can't tolerate seawater consumption. Our cells can't take it and our kidneys can't take it. • Which gets us at last to your question--what happens if you drink seawater? Bill Bryson puts it vividly: • Take a lot of salt into your body and your metabolism very quickly goes into crisis. From every cell, water molecules rush off like so many voluntary firemen to try to dilute and carry off the sudden intake of salt. This leaves the cells dangerously short of the water they need to carry out their normal functions. They become, in a word, dehydrated. In extreme situations, dehydration will lead to seizures, unconsciousness, and brain damage. Meanwhile, the overworked blood cells carry the salt to the kidneys, which eventually become overwhelmed and shut down. Without functioning kidneys you die. That is why we don't drink seawater.

  10. Things that can change salinity • Rain and snow increase or decrease • Evaporation rate

  11. Temperature of Ocean • Surface water • Constant temp • Decreases as latitude increases

  12. Thermocline a transition layer between deep and surface water

  13. Cold water = more dense water • Slow moving ocean current • Cold water sinks at poles • Flows under warm water at equator • Holds more dissolved gas than shallow

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