Original Project
Atoms, Molecules, and States of Matter
Item AM076002: The molecules of cold water move slower than the molecules of hot water.
How do the molecules of cold water differ from the molecules of hot water?
- The molecules of cold water move faster than the molecules of hot water.
- The molecules of cold water move slower than the molecules of hot water.
- The molecules of cold water move at the same speed as the molecules of hot water.
- It is not possible to say anything about how the molecules differ without more information.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 1858 | 2895 | 64% |
| Grades | |||
| 6–8 | 1055 | 1778 | 59% |
| 9–12 | 800 | 1109 | 72% |
| Gender | |||
| Male | 906 | 1381 | 66% |
| Female | 930 | 1473 | 63% |
| Primary Language | |||
| English | 1704 | 2588 | 66% |
| Other | 136 | 275 | 49% |
- Notes
- See NGSS performance expectation MS-PS1-4: Develop a model that predicts and describes changes in particle motion, temperature, and state of a pure substance when thermal energy is added or removed.