2. FLASH CARDS Ocean Motion

3. wave movement of energy though a body of water Click for Term

4. trough lowest point of a wave Click for Term

5. wave height vertical distance between the crest and trough of a wave Click for Term

6. spring tide greatest difference in the heights of high and low tides Click for Term

7. longshore drift movement of sand along a beach Click for Term

8. rip current a rush of water that flows rapidly back to sea through a narrow opening Click for Term

9. erosion to break up rock and carry it away Click for Term

10. crest highest point of a wave Click for Term

11. tides daily rise and fall of water on Earth’s coastlines Click for Term

12. neap tide least difference in the heights of high and low tides Click for Term

13. winds mostly causes ocean waves Click for Term

14. wavelength horizontal distance between wave crests Click for Term

15. tidal power a clean, renewable source of energy that uses water movement between high and low tides to produce electricity Click for Term

16. groin a wall of rocks or concrete that reduces erosion along a stretch of beach (however, it increases the amount of erosion farther down the beach) a wall of rocks or concrete that reduces erosion along a stretch of beach (however, it increases the amount of erosion farther down the beach) Click for Term

17. gravity the force from the sun and moon that causes tides Click for Term