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Item AM035004: When a piece of solid wax is heated, it becomes a liquid and the wax molecules become more loosely connected to each other.

A piece of solid wax is placed in a pan and heated on a stove. After a while, the solid wax becomes a liquid. Which one of the following explains why the wax becomes a liquid?

  1. Some of the wax molecules get smaller.
  2. Some of the wax molecules are destroyed.
  3. The wax molecules change into water molecules.
  4. The wax molecules are more loosely connected to each other.
Distribution of Responses
Chart showing distrubtion of responses for Item 035004
Students Responding Correctly
Group Correct Total Percent
Overall 1585 2913 54%
Grades
  6–8 866 1800 48%
  9–12 715 1105 65%
Gender
  Male744139153%
  Female820148455%
Primary Language
  English1476259057%
  Other9629133%

View data table