________________________KEY CONCEPTS____________________
        D The force due to gravity causes the pressure of any fluid to vary
            with its depth
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    Pressure and Octean Depth:  Exploring the Main Ideas
        The following graph shows how the pressure of ocean water changes
        with depth.  Study the graph, then answer the questions.

        1.  How does the pressure of the ocean water change as ocean depth increases?
 

        2.  What is the pressure of ocean water at sea level?
            At a depth of 200 meters?
            At a depth of 1500 meters?

        3.  Does pressure change at a constant rate as ocean depth increase?
            How can you tell?
            What is the approximate rate of change?