Item CL011002: When a container of water is warmed from the bottom, the warmer water at the bottom of the container rises to the top and colder water at the top sinks toward the bottom of the container.

Which of the following statements describes what happens when a container of water is warmed over a flame?

  1. Warmer water at the bottom rises toward the top and the colder water at the top sinks toward the bottom.
  2. Warmer water at the bottom rises toward the top but colder water at the top does not sink toward the bottom.
  3. The warmer water at the bottom does not rise. Heat rises through the water, warming the water as it rises.
  4. The warmer water at the bottom and the heat both rise, but they rise separately.
Distribution of Responses
Chart showing distrubtion of responses for Item CL011002
Students Responding Correctly
Group Correct Total Percent
Overall 852 2279 37%
Grades
  6–8 438 1219 36%
  9–12 412 1049 39%
Gender
  Male403110337%
  Female414108238%
Primary Language
  English728194337%
  Other8623836%

View data table