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Because its particles aren't as close together weighing it down. Water particles (H2O) are closer together (making the substance more dense) because they "want" to hydrogen bond with each other, which is energetically favorable. Oil (or any hydrocarbon) mainly "want" to just not be pushed up to another molecule so are farther apart at normal temperatures. Under very cold conditions this is less so (water is peculiar in that when it freezes it actually becomes less dense, that's why ice floats).
What else can I help you with?
Is oil less dense then water?
Kerosene and turpentine are less dense than engine oil. So is water and rubbing alcohol and other common liquids.
What order do you put water oil and mercury?
Water, oil, and mercury are arranged in increasing order of density. Water is less dense than oil, which is less dense than mercury. So the order would be water (less dense), oil, and then mercury (most dense).
Why does sand oil and maple surup sink in water?
more dense substances sink, less dense substances float. oil will not sink in water, it will float, it is less dense.
What is of less density than rubbing alcohol?
Rubbing alcohol is less dense than water. Therefore, any substance with a lower density than water would also be less dense than rubbing alcohol. Examples include oil and gas.
Does mustard oil float on water?
yes, it floats on water because it is lighter in weight.
Can you make oil less dense than water?
Oil IS already less dense than water.
Is saliva less dense than oil?
Yes, saliva is less dense than oil. Saliva is composed primarily of water, whereas oil is made up of non-polar molecules that are less dense than water.
Is oil less dense then water?
Kerosene and turpentine are less dense than engine oil. So is water and rubbing alcohol and other common liquids.
What is less dense than water?
oil
Is petrolium oil heavier than water?
Oil is less dense than water.
What order do you put water oil and mercury?
Water, oil, and mercury are arranged in increasing order of density. Water is less dense than oil, which is less dense than mercury. So the order would be water (less dense), oil, and then mercury (most dense).
Is glycerin less dense than water and cooking oil?
No, it is more dense than water and cooking oil.
A liquid that is less dense than water is?
oil
Which oil sink in water?
No. Oil floats on water because it is less dense than water.
Will wood float or sink in corn oil?
Wood will float in corn oil because wood is less dense than oil, causing it to float. Oil is less dense than water, so anything less dense than oil will also float in oil.
Do cornoil float on water?
Corn oil floats on water. It floats because oil is less dense than water. When one substance is less dense than another it rises to the top.
Is motor oil less dense than water?
yes
