Does water float on water?
464226
Water mixes with water, rather than floating.  However, it is possible for warmer water to STRATIFY from colder - that is, the warmer water is on top while the colder is on the bottom.
337551
It depends.  Wood floats on water, as does ice.  Rocks sink.
1134473
The Sea. The sea can make a ship float but not a pin.
705113
On what? Water? Clarify--you're too vague by trying to be creative. \n\nOil floats on water.
1169302
Yes, gravity exists near anything that has mass.  If you remove the air from a container, what's inside won't float.
713171
No the molecules still weigh the same. With water the volume will increase, that's why ice floats. Most other substances decrease as they freeze.
751261
It will accelerate rapidly to the surface of the water, and then continue to float upwards through the air, but with less acceleration.  This is all due to the buoyant force.  When an object is immersed in a fluid, the fluid exerts an upwards force equal to the weight of the displaced fluid.  Of course, gravity still acts downwards on the object.  But if the object is placed such that it displaces a volume of fluid with a greater weight than itself, as when the object is hollow or is less dense than the fluid, the net force is upwards.  Helium is less dense than air, and is much less dense than water.  Since water is more dense than air, the displaced volume of water weighs more than the displaced volume of air, so the buoyant force of the water is greater than that of the air.  But it is always a net upwards force, so the balloon is always accelerating, until it reaches its terminal velocity.  Terminal velocity is usually encountered with falling objects, but would also occur in an object accelerating upwards.
648278
a tab floats and stops the water
531135
The weight of water does not change when it freezes, so the bubble would not fall to the ground due to its weight--it would continue to drift and float. However, bubbles are held together due to the surface tension of water and the way that a surficant (such as soap) stabilizes the bubble, so a frozen bubble may not be stable.
702149
salt water is heavier than fresh water. If the water is salty enough, the egg will float. Otherwise, it will sink.
108432
Boats do NOT displace more water than they weigh - the amount of water displaced is EQUAL to the weight of the boat. Salt water is heavier per cubic meter than pure water or fresh water, so a smaller amount of salt water would be displaced for the same weight boat. If the density of the solution was extremely high, as in mercury, the boat would appear to sit on top of the liquid.
1146216
The water isn't flat... The curve is soo subtle you can't see it... that is in the oceans.  Water takes the shape of what ever container it's put in and levels itself off based on the level of gravity around the container... If you put water in a container and then move that container to zero gravity.... the water will not stay in the container or flatten out.  The reason why water curves around the earth is because the earth's gravity is holding it to the curve of the earth... does that make sense??
1156979
anyway, as u know,  any leaf will float on water because the cells (mesophyl) have spaces all between them. the inside of a leaf is like a heap of baloons pressed together a little - they touch only by sides. this is to allow passage of air necessary to photosynthesis, too. the oily appearance of the "skin" , the epidermis of the leaf is good to make it last and live long and not go rotten in water. some plants that float really have one side hydrophilic and the other hydrophobic so that they dont flip the other way up, which would be undesirable. write me email if u have other questions as u study more of this
218971
Any object will float as long as it displaces a volume of liquid that is more massive than itself. Take the aluminum boat and fold it into a block of aluminum and it sinks. But due to the shape of the boat, the mass of the aluminum,plus you, and your fishing gear, is still less than the volume of water pushed aside by the hull of the boat. So, you float.
885671
DENSITY is the key.\n\nRemember, an aircraft carrier will float in water because it is less dense than the water.  To calculate density, divide mass - kilograms (m) by volume - cubic meters (v).\n\nPure water at 25 degrees Centigrade has a density of 998 kg/m^3 so any object with a density lower than this would float.  Higher would sink.\n\nInteresting note:  If you could find a body of water large enough, the planet Saturn would actually float in it since it is less dense.
102873
Archimedes Principle.  The bouyant force pushing up on an object in a fluid is equal to the weight of the fluid displaced by the object.  So as long as the ship displaces more than its weight in water, it will float.  This is why ships made of steel and other dense materials tend to be very big and hollow.
289385
Denser materials can "float" in the sense of remaining suspended, if they are small enough; think of candle soot. The particles must be small enough so that their fall rate is dominated by their air resistance rather than their weight. Such floating is also helped by brownian motion.