Science Vocabulary

4. The tidal ______ is the difference between the level of the ocean at high tide and low tide.
5. The measure of the amount of salts dissolved in seawater.
8. A circulation in the ocean that brings deep, cold water to the ocean surface.
10. The lowest point of a wave.
11. A collapsing wave formed when a wave crest falls as water tumbles over on itself.
12. The rise and fall of sea level.

1. The highest point of a wave.
2. Oceans formed as water filled these low areas during Earth's first billion years.
3. The ______ effect is the shifting of winds and surface currents from their expected paths that is caused by the Earth's rotation.
6. ______ currents move water horizontally.
7. ______ currents form when a mass of seawater becomes more dense than the surrounding water.
9. A rhythmic movement that carries energy through matter or space.