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Answered 2009-05-07 12:43:47
They are filled with air, which is lighter than water so it goes to the surface, like a bubble and has a rope with an anchor attached to it making it stay in place and not move.
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Can you make a coin float on water?
An aluminum coin (for example the 1 yen coin) will float on water due to the surface tension of water.
Will a paper clip float in water?
No, it isn't hollow/light enough... Improving answer: But sometimes things don't actually "float" on the water when they are really held up by surface tesion. I have heard that you can make paper clips or pins "float" on the surface of calm water.
How can you make a compass with a needle magnet and water in a container?
Fill the container about half full of water. Float a leaf on the surface of the water, and float the needle on the leaf. That'll be a beautiful demonstration. I think I'll make one, and I thank you for the idea.
Why does metal NOT float on water?
you can make a razor blade float by surface tension or a sheet of aluminum foil will float. try it. metal ships float by displacing more water than they weigh. but a random hunk of metal sinks because it weighs more than the water it displaces.
Can you put salt in water to make an object float?
If the object does not quite float in water, adding salt to the water might make the object float, yes.
How many paper clips will float in a cup of water?
None. But you can sit a lot of them on top of the water using surface tension, but make sure they don't touch.
What will you do with an aluminum sheet to make it float in water?
A thin sheet of alu foil may stay on the surface as long as there is no water sprayed on it nor immersed under water, then it will sink.
What carbonated substances will make raisins or popcorn float the best?
The surface of the opocorn or raisin allows bubbles to form and they stick to the surface. This allows them to float.
How do you make a can float on water?
If the can is empty, and you avoid water from entering it, it will float without any trouble.
How does the salt make the egg float in water?
The salted water is denser than pure water and eggs can float.
How does salt make a quarter float?
it makes bubbles in water which has enough energy to make it float
What make you float in water?
your flabb.
Exact velocity require to float car on water surface?
The bottom surface of a car will not be of smooth to make it Float. By the way, even a small boat, whose said surface is smooth, even at zero velocity, due to buoyancy force exerted by the water, it floats. If one really wants to make a ca (whose density is more than the water at displaced area)with smooth boat like bottom surface, the velocity should be such that the water should would exert a buoyancy force as if car density is less than water.
Can an earring float in water?
Common metal earring don't float in water. However, you could design on that float by make it hollow. Jewellery design is unlimited, long as it can hung beautifully then anything could be possible, even using plastic to make an earring. I would think the back of the earring could be light and flat enough to be supported by the surface tention of water.
Will salt in water make a coke can float?
it depends on how much salt is in the water. if there is enough, the soda can will float.
What does the salt do to the water to make the eggs float?
Dissolving salt in water increases water density and hence eggs float.
Will salt make an egg float?
yes, salt will make a egg float in water not on a table though
Does lead float?
Yes it can. It needs to displace its own weight in water in order to float. This is the Archimedes principle. The easiest way is to make it it boat-shaped ,with a large surface area on the bottom, which is why boats made out of denser material than lead can float.
How can you make metal float?
if u made the piece ofmetal hollow it can float unless its density is larger than the water densityANSWER:If you make it displace more water than what makes it sink, it will float, as in a ships hull. If you make pontoons out of it, it will float. If you make an enclosed shape that contains enough air, it will float. There should be less density in the item than the water.
How do you make an egg float on water?
Put salt in the water
What are ways that will make a plasticine float on water?
put in in water
Will an egg float in salt water?
Yes because that sat changes the water density and will make the egg float
Is the density of ice is greater than water?
No, why else would it float? It would have to be less to make it float in water.
Does adding certain substances to water make boats float better?
Yes, if it makes the water denser, the boat will float easier. For example, it is easier to float in salty water.
Can you make aluminum float in water?
yes
