Item WC115001: Liquid water evaporates into the air both when the air is very cool and when the air is very warm.

Which of the following statements is TRUE about air temperature and water vapor in the air?

  1. Water vapor in the air comes from the evaporation of liquid water, and liquid water evaporates only when the air is very warm.
  2. Water vapor in the air comes from the evaporation of liquid water, and liquid water evaporates only when the air is very cool.
  3. Water vapor in the air comes from the evaporation of liquid water, and liquid water evaporates both when the air is very cool and when the air is very warm.
  4. Liquid water cannot become water vapor in the air when the air is very cool or when the air is very warm.

Distribution of Responses

Chart showing distrubtion of responses for Item WC115001

Percent of students responding correctly

Overall28%
Grades 6–827%
Grades 9–1228%
Male26%
Female29%
Primary Language is English28%
Primary Language is not English27%

View data table