DO NOW

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DO NOW

• Ocean Water

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Ocean Water

• Explain salinity
• Salinity is the amount of salt dissolved in a
  given amount of water. The more salt in the water
  the higher the salinity.
• Where is salinity higher in the ocean?
• Hot, dry areas (evaporation) or poorly circulated
  areas (Mediterranean Sea)
• Where is salinity lower in the oceans?
• Where fresh water rivers empty into the ocean

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Ocean Water

• How does salinity affect buoyancy?
• The higher the salinity the more buoyant objects
  will be (easier to float)

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Ocean Water

• How does salinity affect density?
• The more salt there is in the water the greater
  the density will be.
• How does temperature affect density?
• Warmer water has more energy so the water
  molecules are farther apart so it is less dense.
  Colder water has less energy so water molecules
  are closer together and the water is more dense.