Humid air is lighter and less dense than dry air. Steam is water as a gas. Gaseous water is less dense than dry air.
No. Steam is a liquid, so it's molecules are farther apart than ice, which is a solid. :)
The density of steam is less than the density of water.
no
Both steam and liquid water are made of the same substance (H2O). However, in the gaseous form (steam), the molecules are moving more quickly, and they are spread apart much farther. As such, the number of molecules per given volume (the mass per volume) is lower for steam. Mass per volume is the same thing as density.
The particles them self, assuming that you are referring to the individual atoms/molecules that makes up a liquid, does not change in "density" when going from one state of matter to another (liquid -> steam). However, the density changes for a certain amount of the matter, for instance one liter. One liter of water weighs a lot more than one liter of water steam. This is because the density of liquid water is much higher than water steam. The density of liquid water is 1000g/liter while the density of steam is 0.8g/liter. In other words, liquid water is over 1200 times denser than water vapor!
More or less density of the material compared to the density of the water.
Buoyancy is the factor of things that float or sink. Density is related because if the object has more density than water, it will sink. But, if it has less density than water, the object will float.
More or less. Specific gravity is the density of a substance, compared to the density of water - so the units may vary.
No, it depends on the volume of water that can dissolve the salt. If the volume of water is more then it dissolves more salt and the density will be more and if the volume of the water is less then it dissolves less salt and the density will be less.
Both steam and liquid water are made of the same substance (H2O). However, in the gaseous form (steam), the molecules are moving more quickly, and they are spread apart much farther. As such, the number of molecules per given volume (the mass per volume) is lower for steam. Mass per volume is the same thing as density.
-- If the object floats in water, then its density is less than the density of water. -- If the object sinks in water, then its density is more than the density of water. -- If the object floats in air, then its density is less than the density of air. -- If the object sinks in air, then its density is less than the density of air.
The particles (atoms or molecules) have more energy and move about more. They are thus more spaced out. Think of a pan of water. It occupies a small volume. Heat it up and the whole house can be full of steam/water vapor/gas. So the same mass has a lot more volume in a gas and as density is mass/volume the density is considerably lower.
The weight does not determine if an object will float in water. If an object has a DENSITY that is more than the density of water then it will sink, if it's density is less than the density of water it will float.
The particles them self, assuming that you are referring to the individual atoms/molecules that makes up a liquid, does not change in "density" when going from one state of matter to another (liquid -> steam). However, the density changes for a certain amount of the matter, for instance one liter. One liter of water weighs a lot more than one liter of water steam. This is because the density of liquid water is much higher than water steam. The density of liquid water is 1000g/liter while the density of steam is 0.8g/liter. In other words, liquid water is over 1200 times denser than water vapor!
Some objects will float on water as the density of the object is less than that of water. Conversely, if an object is more dense than the density of water, then it will sink.
The density of water is greater than that of oil.
It's because of the density of the object; for example wood floats in water because its density is less then the density of water, and metal sinks because its density is more then the density of the water.
For floating in water: density under 1 g/cm3 For sinking in water: density more than 1 g/cm3
Water is at its greatest density at 4 oC.
If its density is less than 1 it will float in water. If its density is more than 1, it will sink in water.