Original Project
Atoms, Molecules, and States of Matter
Item AM049003: The distance between water molecules increases when a cup of cold water warms up to room temperature.
What happens when a cup of cold water warms up to room temperature?
- The size of the water molecules decreases.
- The number of water molecules increases.
- The mass of the water molecules decreases.
- The distance between the water molecules increases.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 1331 | 2900 | 46% |
| Grades | |||
| 6–8 | 720 | 1858 | 39% |
| 9–12 | 606 | 1033 | 59% |
| Gender | |||
| Male | 679 | 1429 | 48% |
| Female | 635 | 1439 | 44% |
| Primary Language | |||
| English | 1212 | 2548 | 48% |
| Other | 92 | 302 | 30% |
- Notes
- NGSS does not address thermal expansion or contraction of matter.