Water currents affected by temperature experiment

The concept of your experiment is create movement of water by means of different water temperatures.
Science Behind it:
When ocean water from North Atlantic Gyre reaches the Gulf Stream it heats up it radiates and heats up Western Europe. The water that remains in the ocean is very cold and it sinks to the bottom joining the deep ocean conveyor.
Design and test a set of procedures that demonstrate water moving because of different temperatures.
1.You must create a Purpose and Hypothesis for your Experiment
2. Design and Test your Procedure
3. Collect Data and Analyze it into a table or graph
4. Write up a conclusion about what you have learned.