Meteorologist Taylor Stephenson explains the science behind all five types of fog form in this installment of "Weather Works.

If the cup of cold water is not exposed to air, no condensation will form. The fast-moving molecules of water vapor transfer their energy to the side of the cup which is cooler. This causes the water ...

This process is called condensation. This is what happens when water molecules in the air touch the outside of the cold cup that is exposed to air. Not much air touches the cup in the bag so not much ...

This is, unfortunately, a common issue in many homes. The condensation forms on the surface because of temperature and humidity differences between the air on the other side of the glass and the ...