1. Unit 2 Oceanography Lesson 1 Earth’s Ocean and the Ocean Floor
Lesson 2 Ocean Waves
Lesson 3 Ocean Currents

2. a movement of ocean water that follows a regular pattern
ocean current

3. the distance from any point on a wave to the corresponding point on the next wave
wavelength

4. a measure of the amount of dissolved salts in a given amount of liquid
salinity

5. a giant ocean wave that forms after a volcanic eruption, submarine earthquake, or landslide
tsunami

6. the movement of deep, cold, and nutrient rich water to the surface
upwelling

7. a layer in a body of water in which water temperature drops with increased depth faster than it does in other layers
thermocline

8. a wave that requires a medium through which to travel
mechanical wave

9. any movement of matter that results from differences in density; may be vertical, circular, or cyclical
convention current

10. the shallow sea floor that is located between the shore-line and the deep ocean bottom; it is divided into the continental shelf, the continental slope, and the continental rise
continental margin

11. a horizontal movement of water that is caused by wind and that occurs at or near the ocean’s surface
surface current

12. the highest point of a wave
crest

13. the ocean floor under the deep-ocean water
deep-ocean basin

14. time required for corresponding points on consecutive points on consecutive waves to pass a given point
wave period

15. a long under-sea mountain chain that forms along the floor of the major oceans
mid-ocean ridge

16. a disturbance that transfers energy from one place to another; a wave can be a single cycle or it can be a repeating pattern
wave

17. the lowest point of a wave
trough

18. the curving of the path of a moving object from an otherwise straight path due to Earth’s rotation
Coriolis Effect

19. a long, narrow, and deep depression on the ocean floor that forms when one tectonic plate subducts beneath another plate; trenches run parallel to volcanic island chains or to the coastlines of continents; also called a trench or a deep ocean trench
ocean trench

20. a stream-like movement of water far below the surface
deep current

21. a disturbance on the ocean that transmits energy and takes the shape of a swell or a ridge
ocean wave