| A | B |
| Continental Shelf | A gently sloping, shallow area of the ocean floor that extends outward from the edge of a continent. |
| Continental Slope | An incline leading down from the edge of the continental shelf. |
| Sea Mount | A mountain on the ocean floor that is completely underwater. |
| Abyssal Plain | A smooth, nearly flat region of the deep ocean floor. |
| Mid-ocean Ridge | The undersea mountain chain where new ocean floor is produced; a divergent plate boundary. |
| Ocean Trench | A deep canyon in the ocean floor. |
| Crest | The highest point of a wave. |
| neritic zone | The region of shallow water in the ocean that extends from the low-tide line out to the edge of the continental shelf. |
| open-ocean zone | The area of the ocean beyond the edge of the continental shelf. |
| Trench | A deep canyon in the ocean floor. |
| Trough | The lowest point of a wave. |
| Wave | The movement of energy through a body of water. |
| Corolios Effect | The way Earth's rotation makes winds in the Northern Hemisphere curve to the right and winds in the Southern Hemisphere curve to the left. |
| Longshore Drift | The movement of water and sediment along a beach caused by waves coming into shore at an angle. |
| Neap Tide | A tide with the least difference between low and high tide that occurs when the sun and moon pull at right angles to each other. |
| Spring Tide | A tide with the greatest difference between high and low tide that occurs when the sun and hte moon are aligned in a line with Earth. |