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Some fish have an air bladder. Some don't.
It's also called a swim bladder or gas bladder. It makes it easy for fish to control their buoyancy, and stay at the level they want without a lot of extra swimming.
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Does bone China float?

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Can a bone float on water?

Yes, bones are more dense than water, so they will sink rather than float.


Does whale bone float-?

Whale bones sink in water because of the lack of blubber that makes the whale float.


Would bone float on water?

No, bone would sink in water because its density is greater than that of water. Bone is made up of minerals like calcium and phosphorus, which make it denser and heavier than water.


Are Victoria and albert fine bone china mugs made with real bone?

The 'bone' in bone china indicates that the china clay has been mixed with bone ash.


What does Made in China mean on fine bone China?

It means the fine bone China was Made In China.


Do chicken bones float?

A dense heavy bone would not float and a skull without any internal contents through decomposition or insect infestation would not hold water or a probable air pocket and so would sink, light porous bone might float especially in sea water. If a skull had previously been buried and there had been a gradual filling of the cranial cavity with soil so that an air pocket was formed within the area above the ear holes and nasal hole, a skull might float, at least until the soil dissolved.


What is the difference between bone China and new bone China?

The difference is the spelling.


Will cremated ashes dissolve in water?

Some of the ash will, but there will be bone fragments that will sink to the bottom of the water. You can purchase water soluble urns that can be placed in the water. They float for a few minutes and then sink.


Does arrowhead float on water?

Yes, arrowheads made from materials like obsidian, chert, or flint are denser than water and will sink. Arrowheads made from lighter materials like bone or antler may float on water depending on their size and shape.


Are bone China mugs from China?

Bone china mugs are usually made in the United Kingdom. Bone china is just a soft-paste porcelain. The name 'china' has to do with the material rather than the country of origin.


What is bone china made of?

Bone china is made of 50% bone ash, & 25% each of china clay and china stone. It is combined with water to make a slurry, which is then fashioned into cups, saucers, plates and so on. The pieces must be fired in a kiln at high degrees of heat (1100c to 1250c) for the china to become hard and strong. It is the bone (usually animal bone, cleaned of all meat and glue) that gives the china its transparent whiteness. The ingredients of bone china are china clay, china stone, silica, alumina, alkalies, lime and bone ash. It is fired at high of 2,300 to 2,500 degrees Fahrenheit. In the best grades of English bone china, 50% or more of the body consists of refined bone ash prepared from specially selected animal bones which are reduced to a fine powder by heat. The bone is mixed with the finest china clays and highest quality Cornish stone. Specially skilled workers are needed in the manufacture of bone china and the best and most highly skilled in the world are found in the pottery district of England.