Fundamental to the answer is the scientific principle of density. This is basically related to how far apart the molecules in a compound are from each other. In lead and rock, for example, they are very tightly packed. In aluminum and most plastics, they are more loosely packed.
Another key concept is that of molecule activity - at higher temperatures, molecules take up more space, as they are not entirely stationary; they actually move (or vibrate in a solid), and move or vibrate faster and harder when heated, taking up more space.
Thus, using these two principles, we find that water that is hot is less dense than water that is cold. In a fluid, the densest portion sinks to the bottom, as gravity has more pull on it. A cubic metre of cold water weighs more than a cubic metre of hot water, as the hot is less dense. This is the same reason that wood and oil floats on water - heating water just adjusts its density.
As for why ice floats, that is a very special and unique circumstance, and for a different question. In general, solids of a compound will sink in a fluid of that compound.
It has air inside that makes it float.
The "average" density of the object must be less than that of the water displaced.
The salt in the water causes everything to have more buoyancy (Meaning it makes things more likely to float.) If you die in the ocean your body is more than likely going to float unless it is attached to something heavier is attached.
There are tents designed to Float in water. But not all tents designed to float.
Soil floats on water!
Bouyancy is what makes a boat float
It has air inside that makes it float.
its hot because that makes it lighter so it can float above air.
its hot because that makes it lighter so it can float above air.
Yes
You can float an egg in very salty water.
floatsacs
We float or there is a possibility you can sink. You sink when you are heaver than the mass of the water. You float when you are lighter than the mass of the water.
Hot air. That's what makes it float.
a ocean because the salt water makes you float and a pool water doesn't.
Pumice can float in water. It is made from volcanic lava and has gases trapped in it, which makes it float.
salt in water makes water denser when dissolved, making egg float.