Item AM039004: The distance between water molecules increases as a cup of water is warmed.

What happens when a cup of water is warmed?

  1. The water molecules break down.
  2. The number of water molecules increases.
  3. The mass of the water molecules decreases.
  4. The distance between the water molecules increases.

Distribution of Responses

Chart showing distrubtion of responses for Item AM039004

Percent of students responding correctly

Overall45%
Grades 6–838%
Grades 9–1258%
Male48%
Female43%
Primary Language is English47%
Primary Language is not English32%

View data table