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Ocean Vocabulary

Across
Is a long, deep valley on the ocean floor through which old ocean floor sinks back toward the mantle.
The steep edge of the continental shelf is called
Is a long chain of mountains on the ocean floor
Is a volcanic mountain rising from the ocean floor that doesn't reach the surface.
Down
Is a board area covered with thick layers of mud and silt
Is a gently sloping, shallow area that extends outward from the edge of each continental
Is the total amount of dissolved salts in a sample of water.
Used for sea floor mapping.