Original Project
Atoms, Molecules, and States of Matter
Item AM039004: The distance between water molecules increases as a cup of water is warmed.
What happens when a cup of water is warmed?
- The water molecules break down.
- The number of water molecules increases.
- The mass of the water molecules decreases.
- The distance between the water molecules increases.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
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|---|---|---|---|---|---|---|---|---|
| n = 4517 |
6–8 n = 2842 |
9–12 n = 1664 |
Male n = 2173 |
Female n = 2276 |
English n = 3995 |
Other n = 434 |
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| A. | The water molecules break down. | 17% | 19% | 14% | 16% | 19% | 17% | 25% |
| B. | The number of water molecules increases. | 20% | 24% | 13% | 19% | 21% | 19% | 22% |
| C. | The mass of the water molecules decreases. | 17% | 19% | 15% | 17% | 17% | 17% | 21% |
| D. | The distance between the water molecules increases. | 45% | 38% | 58% | 48% | 43% | 47% | 32% |