The directions are very detailed, but basically you put water and food coloring in a clear dish. Then, you make "crude oil" using cocoa powder and vegetable oil and add it to the water. (Bonus-this teaches about oil and water, too!) Items such as feathers can be added to the polluted water to show students what it is like for birds in the water. Then, you experiment with different sorbents and methods of cleaning up oil spills. It was a wonderful way to show students the effects of an oil spill and the difficulty involved in cleaning up a massive oil spill.
Oil on top of the water...
Testing sorbents...
After the dish soap has been added...
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