Original Project
Atoms, Molecules, and States of Matter
Item AM052005: When an iron frying pan cools, the distance between the iron atoms decreases.
After cooking breakfast, a cook places a hot iron frying pan on the counter to cool. What happens as the iron pan cools?
- The iron atoms increase in size.
- The iron atoms decrease in mass.
- The number of iron atoms increases.
- The distance between iron atoms decreases.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 2878 |
6–8 n = 1775 |
9–12 n = 1095 |
Male n = 1375 |
Female n = 1463 |
English n = 2570 |
Other n = 278 |
||
| A. | The iron atoms increase in size. | 12% | 14% | 10% | 13% | 12% | 12% | 15% |
| B. | The iron atoms decrease in mass. | 24% | 25% | 22% | 24% | 25% | 24% | 26% |
| C. | The number of iron atoms increases. | 13% | 16% | 9% | 11% | 15% | 12% | 21% |
| D. | The distance between iron atoms decreases. | 50% | 45% | 59% | 52% | 48% | 52% | 39% |