Whether an object floats or not depends on its density. Density is the amount of mass in a volume, or mass divided by volume. If and object's density is less than that of water, it will float in...
Because the floating object weighs less than the water (or liquid) it displaces. I think this has to do with density. At room temperature water has a density of a little less than 1000 kg/m3. In...
Anything heavier than water sinks; anything lighter than water floats. Or, another way to say it: anything with a higher density than water (water weighs about a gram per cubic centimeter), or a...
It does float but it floats in the air.
Answer
The term from parades probably origates from boats in that the floats appeared to travel without support because of hidden wheels ( or even human...