Which of the following is an example of a chemical reaction?

  1. A marshmallow turning black when heated over a fire
  2. A powder dissolving in water to make lemonade
  3. An ice cube melting into a puddle of water
  4. Salt crystals being crushed into a powder

Distribution of Responses

Chart showing distrubtion of responses for Item SC065004

Percent of students responding correctly

Overall39%
Grades 6–835%
Grades 9–1248%
Male42%
Female36%
Primary Language is English39%
Primary Language is not English37%

View data table