Original Project
Atoms, Molecules, and States of Matter
Item AM031004: The bubbles that form when water boils are made of water molecules.
When water boils, bubbles rise to the surface of the water. What are the bubbles made of?
- Air molecules
- Heat molecules
- Water molecules
- Oxygen molecules
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 2905 |
6–8 n = 1863 |
9–12 n = 1033 |
Male n = 1434 |
Female n = 1440 |
English n = 2551 |
Other n = 304 |
||
| A. | Air molecules | 28% | 29% | 26% | 28% | 28% | 28% | 23% |
| B. | Heat molecules | 22% | 25% | 17% | 20% | 25% | 22% | 30% |
| C. | Water molecules | 15% | 13% | 18% | 16% | 14% | 15% | 17% |
| D. | Oxygen molecules | 35% | 32% | 40% | 35% | 34% | 35% | 30% |