Across
- 3. underwater mountain chain.
- 5. a tide just after the first or third quarters of the moon when there is least difference between high and low water.
- 7. steep depressions in the deepest parts of the ocean
- 9. an underwater mountain formed by volcanic activity.
- 10. the process of dropping off sediment.
- 13. caused by the rotation of the earth.
- 14. caused mainly by winds but not daily winds.
- 16. caused by gravitational pull of the moon and the sun.
- 17. the measure of how much salt is in something.
- 19. created by energy passing through water
- 20. what makes something up.
Down
- 1. a lowland region that forms where Earth's tectonic plates move apart, or rift.
- 2. the height difference between high tide and low tide
- 4. result from differences in water density.
- 6. a tide just after a new or full moon, when there is the greatest difference between high and low water.
- 8. the edge of a continent that lies under the ocean.
- 11. the slope between the outer edge of the continental shelf and the deep ocean floor.
- 12. mass of a unit volume of a material substance
- 15. An extensive, flat, gently sloping or nearly level region at abyssal depths.
- 18. the process of moving sediment.