| A | B |
|---|
| MId Ocean Ridge | Place where new seafloor is formed |
| Continental Margin | Edge of the continent that includes the continental shelf, continental shelf break, continental slope and the continental rise |
| Abyssal Plain | The flat part of the ocean floor that is coverd by sediment |
| Seamount | an inactive volcanoe that is below the surface of the water |
| Continental shelf | The edge of the continent that extend out under the water |
| Deep sea trench | Place where seafloor is being destroyed, a v-shaped depression on the seafloor that resembles a valley |
| Continental slope | The steep side of the continental shelf where the continental shelf extends down to the seafloor |
| Continental rise | At the bottom of the continental slope where turbidity currents deposit sediment |
| Sonar | Sound waves used to remotely sense the seafloor |
| Echo sounding | Uses sonar to detect the depth to the seafloor |
