| Definition | Vocab Word |
| General term for an underwater mountain system that consists of various mountain ranges. | |
| The transition between oceanic and continental crust. | |
| A depression of the sea floor more or less equidimensional in form and of variable. | |
| Located along the crest of the mid-ocean ridge system and is the result of sea floor spreading. | |
| The study of underwater depth of lake or ocean floors. | |
| A mountain rising from the ocean seafloor that does not reach to the water's surface. | |
| A steep-sided valley on the sea floor of the continental slope. | |
| Scientific study of the ocean and its phenomena. | |
| An isolated underwater volcanic mountain. | |
| It is the location of plate boundaries and are characterized by frequent earthquakes and abundant volcanism. | |
| Sediments of those derived from the erosion of rocks on land. | |
| A current of rapidly moving, sediment-laden water moving down a slope through water, or another fluid. | |
| The zone of the ocean floor that separates the thin oceanic crust from thick continental crust. | |
| A type of archipelago composed of a chain of volcanoes. | |