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Why do iron filings do not sink when placed slowly on the surface of the water?
Wiki User
∙ 14y ago
Surface tension supports the filings in the same way as a pond skater. Add a drop of detergent and the meniscus is broken down and the filings fall to the bottom
Wiki User
∙ 14y ago
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What is the shape of a drop of oil placed in the surface of water?
it is lens in shape
Why does a drop of water placed on the surface of oil contracts to form a spherical shape?
The surface tension of the water and the fact that oil and water cannot wet each other.
Does a paperclip float in water?
Yes a paper clip is able to float in water. Take a bowl, fill it up to the top with water, take a paper towel and put it into the bowl, let it sit there for 3 seconds...then put the paper clip on it, and slowly remove the towel. This is able to work by Surface tension.Depending on the size, some paperclips can due to the high surface tension of water.
What is salt a mixture of?
A heterogeneous mixture: There are no chemical bonds between the iron filings and sand.
How you would separate a mixture of water sand salt and iron filings into its four component parts?
In solution, the salt will be dissolved in the water, the sand and iron will settle to the bottom of the container. Separate out the water, evaporate the water and the salt will remain, separate the sand and iron filings with a magnet.
Why does a solid needle placed horizontally on the surface of the water float?
Due to surface tension
What happens to ice when placed in a cup of liquid water?
It simply floats and slowly melts.
What is the shape of a drop of oil placed in the surface of water?
it is lens in shape
What technique will use to separate ashes and iron filings with water?
separate iron filings AND ash from water by filtration or evaporation then, if required, separate iron filings from ash by using a magnetic field,
Why does a coin placed in a basin filled with water appear to be nearer the surface of the water?
because it is refracted.
What happens to a solid object when density that is less than water when it is placed in water?
it floats.They float at water surface.
What happens to a solid object with density that is less than water when it is placed in water?
it floats.They float at water surface.
Why does a drop of oil placed on the surface of water spread over the entire surface?
because the water has more density than the oil so the oil spreads only on the surface.
What is the densities of iron filings table salt pepper in water salt and iron filings and sugar in water?
angela and ev jackson are cool
Why does a drop of water placed on the surface of oil contracts to form a spherical shape?
The surface tension of the water and the fact that oil and water cannot wet each other.
What would happen to a fresh water cell if placed into salt-water?
die..and its body will float on the surface
How can aluminum foil float in water?
A thin aluminum foil can float on water if placed carefully flat on the surface because of the surface tension of water. If you were to submerge it, the foil will sink.
