Because the fluid at the bottom has a greater density than the one at the top.
Interesting Question. I would say Yes. However, be aware that there is another force that could hold the ice cube. That is viscosity. Viscosity is a force resists movement of fluid over a solid surface. For the cube to "float" means the weight of the cube of ice is lighter than the weight of the ketchup that it displaces.Two different forces going on.
If the low density water was put over another fluid of lower density it would sink but if it was put over a high density fluid like Mercury it would floats.
The Archimedean Principle takes over. The weight of a body immersed in a fluis is equal to the weight of the fluid disoplaced. A solid will either float or sink , but it displaced the fluid. Sometimes the solid may absord the fluid, but there is still a displacement of fluid.
The lithosphere is the solid part of the Earth's surface, the crust and uppermost mantle, which is fragmented into plates which "float" over the hotter, more fluid asthenosphere.
the lentils would float to the top and drop back down and then repeat this over and over again
It would tip over but still float.
A substance floats over another substance if it is less dense. Density is a measure of how much mass is in a given volume, so if one substance is less dense than another, it will float on top. This is due to the buoyant force exerted on the less dense substance by the denser substance.
The lithosphere is the solid part of the Earth's surface, the crust and uppermost mantle, which is fragmented into plates which "float" over the hotter, more fluid asthenosphere.
An object can float on water only if its density is less than water.(Archimedes principle). So, to make an object float, its density should be low. For this purpose, its mass should be less and volume should be greater(d=m/v), so to make heavy objects to float, their volume should be as less as possible. For more details, contact at saqibahmad81@yahoo.com
Big metal ships are designed with a specific shape and structure that displaces enough water to generate buoyancy, which allows them to float. The weight of the ship is spread out over a large enough area, preventing it from sinking. The principle of buoyancy, based on Archimedes' principle, explains why objects float or sink in a fluid.
It will either float in the air for longer or go bang :-)
In order to float on water, the object would have to have a density of less than 1g/mL, which is stated 1gram per milliliter, not over milliliter.