Weekly blog - 4/4 - 4/11 - Ocean currents

en.wikipedia.org

Summary: Oceans currents are a crucial part of the ocean environment.They are powered by wind circulation across the surface of the ocean. Ocean currents are created by density, salinity, temperature changes, and wind. Because of this, wind currents and ocean currents travel in the same general direction. When two winds clash, they bounce back and then turn causing gyres. Ocean currents also create gyres (from the wind). This occurs along with the wind. The water hits land masses causing it to bounce back and form and travel in a circular shape. This means that if there were garbage it would just stay there for a long time. (GPGP) Currents flow clockwise in the northern hemisphere and counterclockwise in the southern hemisphere. 

SP2: Developing and Using Models:
We used models to explain how different things contribute and affect the forming of currents, mainly ocean currents.We put two rocks in a small tub of water along with some ice (in one corner). We put food dyes to act as pollutants and the change in temperature to create small currents. The food dye was able to move a little bit. After a few minutes, we blew on the surface of the water to create wind currents. The food dye was able to spread across the 'ocean' much faster than before. We used this information to fill out a few worksheets about ocean currents.

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