Question

during a science experiment, lesha and isaac observed the process of condensation on a cold glass of water. what did they see happening to water vapor?
the water vapor evaporated into the air.
the water vapor condensed into droplets on the glass.
the water vapor turned into steam above the glass.
the water vapor froze on the glass.

Explanation:

Condensation is the process where water vapor changes from a gas to a liquid. In this experiment, when water vapor comes into contact with the cold glass, it loses heat energy. As a result, the water vapor molecules slow down and come closer together, forming liquid water droplets. This is what condensation is - the transformation of water vapor (gas) to liquid (droplets) due to cooling (in this case, by the cold glass).

Answer:

The water vapor condensed into droplets on the glass.