Ever wonder why you cannot see the water vapor in the air around us?
Water in Vapor form
Water molecules when in vapor form are transparent.
That's one reason why we cannot see the moisture in the air.
Another, of course, is the tiny size of water molecules, so tiny that our eyes cannot make them out or the loose chains that they form.
Yet another, is that the vapor molecules are randomly arranged and so present no discernible shape to the human eye.
Water Molecules in Liquid Form
Steam is essentially a lot of liquid water molecules suspended in a mixture of air and water vapor molecules.
As light rays that hit these randomly arranged liquid water molecules is a mixture of all colors (i.e. white light), the light exiting from the many liquid molecules appears as white - the color we attribute to steam.
If a different color light, say, red were to be falling on steam, the steam would appear to be red in color.
Water in Vapor form
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| Source - scienceprojectideasforkind.com |
That's one reason why we cannot see the moisture in the air.
Another, of course, is the tiny size of water molecules, so tiny that our eyes cannot make them out or the loose chains that they form.
Yet another, is that the vapor molecules are randomly arranged and so present no discernible shape to the human eye.
Water Molecules in Liquid Form
 |
| Source - crazykitcheninventions.co.uk |
As light rays that hit these randomly arranged liquid water molecules is a mixture of all colors (i.e. white light), the light exiting from the many liquid molecules appears as white - the color we attribute to steam.
If a different color light, say, red were to be falling on steam, the steam would appear to be red in color.
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