Ocean Study Guide Use your notes to complete the following: 1. Need to label the ocean floor. Study diagram. 2. Study Ocean vocabulary work sheet and these words: Salinity Wave Tide Current Water pressure Scuba Submersible Sonar 3. Name the 3 ocean zones. Sunlight Twilight Midnight 4. Name the 4 types of waves and their causes. Use your notes or textbook. 5. Name the 4 types of currents and their causes. Use your notes or textbook. 6. What causes ocean tides? How many high and low tides do we each day?