Ocean zones

• Name all oceans


  Pacific, Atlantic, Indian, Southern, Arctic
• Rank oceans from smallest to largest 


  Arctic, Southern, Indian, Atlantic, Pacific
• How have rubber ducks helped oceanographers 


  They used the rubber ducks to  track their movements and to better understand the strength and speed of oceanic currents.
• What is the great pacific garbage patch?

  The "garbage patch" is a popular name for concentrations of marine debris in the North Pacific Ocean.
• How do plastic waste get into the ocean?


  Rainwater and wind carries plastic waste into streams and rivers, and through drains. 
• Describe the process of Ocean Circulation

   Ocean gyre circulation moves cold surface water from the poles to the equator, where the water is warmed before the gyres send it back toward the poles.
• What is a gyre?


  A gyre is a large system of rotating ocean currents
• What are ocean currents driven by?

  Ocean currents are driven by wind, water density differences, and tides.