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2. Chemical Oceanography
Lets take a quiz to see how much you know! http://ga.water.usgs.gov/edu/sc3.html   (1) Water contracts (gets smaller) when it freezes. (2) Water has a high surface tension. (3) Condensation is water coming out of the air. (4) More things can be dissolved in sulfuric acid than in water. (5) Rainwater is the purest form of water. (6) It takes more energy to heat water at room temperature to 212o F than it does to change 212o F water to steam. (7) If you evaporate an 8-inch glass full of water from the Great Salt Lake (with a salinity of about 20% by weight), you will end up with about 1 inch of salt. (8) Sea water is slightly more basic (the pH value is higher) than most natural fresh water. (9) Raindrops are tear-shaped. (10) Water boils quicker at Denver, Co. than at the beach.
What is Chemical Oceanography and why are we learning it now? IT IS: “The study of the interactions between the elements and the world’s oceans”
What’s so special about seawater? ,[object Object],[object Object],[object Object]
Other Cool Stuff You Should Know About Ocean Water: 3) Water Temperature, Salinity, and Density change with Depth **LOOK OUT!!! Very Important Vocab Below!**
More Important Water Stuff to Consider! Think about what these mean!!! Ask questions!!! ,[object Object],[object Object]
Tools Frequently Used For Chemical Oceanography ,[object Object],[object Object],[object Object],[object Object],[object Object]
Secchi Disk ,[object Object],[object Object],[object Object],[object Object],[object Object]
How do we collect water to sample? Primary Sampling Gear for Chemical Oceanography:  CTD Rosette-a collection of water sampling bottles
Niskin Bottles    Collect water from various depths Can be used on a Rosette or alone  The “messenger”- triggers the Niskin to shut at both ends messenger
Once you have the water sample, then what? Devices to Measure Salinity ,[object Object],[object Object],[object Object]
What types of problems do chemical oceanographers study? Hypoxia – low DO (dissolved oxygen) **why is this a problem?  Hint:  take a deep breath and think about it! Dead Zones! What does the picture above have to do with the picture to the left?

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Marine chemistrynotes1011

  • 2. Lets take a quiz to see how much you know! http://ga.water.usgs.gov/edu/sc3.html (1) Water contracts (gets smaller) when it freezes. (2) Water has a high surface tension. (3) Condensation is water coming out of the air. (4) More things can be dissolved in sulfuric acid than in water. (5) Rainwater is the purest form of water. (6) It takes more energy to heat water at room temperature to 212o F than it does to change 212o F water to steam. (7) If you evaporate an 8-inch glass full of water from the Great Salt Lake (with a salinity of about 20% by weight), you will end up with about 1 inch of salt. (8) Sea water is slightly more basic (the pH value is higher) than most natural fresh water. (9) Raindrops are tear-shaped. (10) Water boils quicker at Denver, Co. than at the beach.
  • 3. What is Chemical Oceanography and why are we learning it now? IT IS: “The study of the interactions between the elements and the world’s oceans”
  • 4.
  • 5. Other Cool Stuff You Should Know About Ocean Water: 3) Water Temperature, Salinity, and Density change with Depth **LOOK OUT!!! Very Important Vocab Below!**
  • 6.
  • 7.
  • 8.
  • 9. How do we collect water to sample? Primary Sampling Gear for Chemical Oceanography: CTD Rosette-a collection of water sampling bottles
  • 10. Niskin Bottles Collect water from various depths Can be used on a Rosette or alone  The “messenger”- triggers the Niskin to shut at both ends messenger
  • 11.
  • 12. What types of problems do chemical oceanographers study? Hypoxia – low DO (dissolved oxygen) **why is this a problem? Hint: take a deep breath and think about it! Dead Zones! What does the picture above have to do with the picture to the left?

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