Item CL008002: When cold air comes into contact with warmer air around it, the cold air will sink.

A teacher opens a window in her classroom, letting in air that is colder than the air inside the classroom. 

What will happen to the colder air when it comes into contact with the warmer air in the classroom?

  1. The cold air will sink toward the floor.
  2. The cold air will stay at the same height as the window, neither rising nor sinking.
  3. The cold air will sink if it is much colder than the air around it; but if it is only a little colder than the air around it the cold air will not sink.
  4. The cold air from outside will not sink toward the floor, but the coldness from the air will sink toward the floor and cool the air that is already there.

Distribution of Responses

Chart showing distrubtion of responses for Item CL008002

Percent of students responding correctly

Overall37%
Grades 6–835%
Grades 9–1239%
Male38%
Female36%
Primary Language is English38%
Primary Language is not English33%

View data table