It has to do with the combination of volume and mass of an object. Together we call this its density. Density is mass divided by volume. Another factor is buoyancy: an object will sink until it has replaced as much water as it has solid mass. A big steel barrel, welded shut, will have a big volume but - because its inside is only air - very little solid mass in relation to that volume. So it floats, and a ship floats for the same reason. A pebble is all mass and very little volume, so it sinks.
But why does a little piece of solid wood then float and a same-sized pebble not? Also because of its density. Wood - or stuff like styrofoam - as a material has a much more 'open' molecular structure than stone or iron, so that gives them less solid mass and a much lower density.
The materials which are denser than the medium it is in, it begins to sink. So these types of materials have the ability to sink
Your question specifies "sink" AND "float".
That encompasses everything.
As heptane is lighter than water, it will float.
unboiled eggs float, but the boiled ones sink.
no they dont float like normal people
It depends on the shape of the fork and the material from which it is made. Most non-metal (wood, plastic) forks will float. Metal forks will sink unless they are shaped to have a large enough surface area on the bottom.
Depends on the medium, and whether the ball is solid or not. A solid ball would float on mercury, sink in water. If it were hollow enough (or filled with, say, cork) it would float in water.
material that sink has a density above that of water and does not obey the law of floatation.
The ones which float have a lower density than water, whereas those which sink have a higher density than water. However, also the shape the material is in influences whether it sinks or floats.
Well it depends on what the 'different' items are.
I have a marker which float in water.
does Arsenic float or sink
it will float as long as it is not fully covered water.
scoria will sink but pumice will float.
Boats can sink. They are usually made of materials that allow them to displace water, and permit them to float. From time to time, that material will break down, and the boat will sink.
Yes and no. Rubber bands can float and sink in water. They will float on the water for awhile and then will sink. But not all the time the rubber bands will float on the water for awhile. Sometimes it will immediately sink.
rocks metal eggs dirt or sand all sink some woods sponge plastic aluminum cans all float
float
Float.