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Ocean Currents
| Question | Answer |
|---|---|
| What is a current? | A river-like flow of water in the ocean. Ocean water does not sit still, it flows in currents. |
| What are the two main types of currents? | Surface currents Deep-water currents |
| What is a surface current? | Moving water at the top layer of the ocean. Wind causes most surface currents. |
| What is a deep-water currant? | The movement of water below the surface caused by differences in salinity, temperature, and density. Deep-water currents occur when water rises and pushes away large amounts of warmer water. |
| How do deep water currents move large amounts of water? | The cold, dense water with high salinity sinks as it moves toward the equator. As it heats up it becomes less dense and rises, moving the water directly above it back toward the North Pole. |
| How does the Gulf Stream affect the climate of Great Britain and Europe? | 4. The Gulf Stream moves warm water from the equator towards Great Britain and Europe, making their climate warmer than other places at the same latitude, such as Canada. |
Created by:
crhanna2003
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