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Ice Air is less dense than water, so water sinks below air. A rock is more dense

than water, so it sinks in water and air. And helium, which is less dense

than air, rises in air and in water.

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Q: What are three substances that have a lower density then water?
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Related questions

Density of an object is less than density of water?

It is for some substances and not for other substances.


Does oil or water have a lower density?

Oil floats on water, and has a lower density.


What can float on water?

Any object with a density lower than 1 g/cm3.


Does salt water have a lower density than water?

Yes, fresh water has a slightly lower density than salt water.


How is water density affected by freezing?

The density of ice is lower than the density of water.


How does waters relative densities as a solid and a liquid differ from that of most other substances?

Water has a lower density as a solid than it does as a liquid. In the vast majority of substances are denser as solids than as liquids.


Why fruit floats?

Its probably due to the overall density of the fruit. Should it be composed mostly of air (or more buoyant substances, like coconuts do), then its overall density would be lower than water, resulting in a fruit that floats on water.


Does freshwater have a lower density than salt water?

Yes, fresh water has a slightly lower density than salt water.


What does a solid block with a lower density than water do in a container of water?

A solid block with a lower density than water will float in a container of water.


Why snow floats on water?

The density of snow is lower than the density of water.


Why do substances with higher density have a higher boling and freezing point?

Um... who says they do? Lead has a significantly higher density than aluminum but a considerably lower melting point.


Does density have an effect on ice?

The density of ice is lower than the density of water; ice float on water.