• Over 2/3’s of the earth’s surface is covered with water.---brown and blue squares on a map to cover land and water. Count the squares.
   

• Ocean waters contain dissolved salts.
  Use two cups of water. Add salt to one, stir to dissolve.
  Ask where the salt is now? How can they tell the salt is still in the water? The salt in the ocean is the same kind
  of salt used on your food!
  
  Put a few drops of the salt water on a plate under a heat lamp. Now ask where is the water? Where is the salt? How do you know?
   

• Besides salt, there’s many other substances that can dissolve in water---universal solvent.
   

• Oceans vary in depth and temperature.
  locate and label the Atlantic, Pacific, Indian, and Artic Oceans on a map. Use your finger to show how you can travel from one to each of the others without crossing land.
  There’s really only one ocean---it is all connected. Artic is coldest? Why? Which ocean is closest to where we live?
  Where would you find an iceberg?
   

• Where does the color of the ocean come from? Algae and from reflecting the sky.
   

• How does it feel on the bottom of the ocean?
  Water pressure experiment---punch 3 holes in a plastic
  bottle. Kids predict what will happen when you pull the plug
  from each hole. Pull the plugs and observe? Why did the
  water on the bottom go the furthest? Pressure. Stack kids so they feel the pressure.·
   

• Aquatic organisms have special structures and colors to help them
  survive in their habitat.
  · Project MARE---Build-a-fish
   

• Food chains in the sea.

Science and technology

Oceans provide us with goods and services
¨ transportation---exploration
¨ recreation---beach vacations
food---seafood, carrageen in brownies, ice cream, gummy
bears, etc

Science in personal and social perspective

Human influences on the ocean---pollution, oil spills, extinction

Hypothesize
· Water Pressure: If you pull the plugs, then...
· Salt water: If you add the salt to the water, then...

Experiment

Measuring water and salt

Observing changes

Communicating scientifically with diagrams, labels, and precise
language