Why Does Oil Float on top of Water?

Answer

Oil floats on top of water because it has a lower density. Oil and water does not mix because water molecules are attracted to each other, this is the same for oil. Since they are attracted to their own molecules, they do not mix together.
Q&A Related to "Why Does Oil Float on top of Water"
Oil is less dense than water While certainly true, and part of it, it isn't the whole story. If this were the case, there wouldn't be many of the solutions that we know and love each
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1. Ask one child to place 6 ounces of water in a glass cup. 2. Choose another child from the class and have her add 6 drops of food coloring to the glass and stir to combine. Let
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Liquids of different densities (that dont become a solution) separate into layers.Density is measured in kg/m³ meaning.kilogrammes per cubic metre.Pure waters density is 1000kg
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Oil is less dense than water, so it floats. Any more questions for ChaCha?
http://www.chacha.com/question/why-does-oil-float-...
1 Additional Answer
Well you know how the story goes. Water and oil don't mix due to their polar and bi polar properties. Oil floats on water basically because it is less dense. It is as simple as that.
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