Original Project
Weather and Climate I: Basic Elements
Clouds and rain form as air cools and water vapor in the air condenses into water droplets.
Item WC082003: If two places have the same amount of water vapor in the air, rain is more likely to fall in the place where the air is cooler.
Air is moving from Location 1 toward Location 2. The air is expected to become cooler as it reaches Location 2. If the amount of water vapor in the air is the same at both locations, where is rain more likely to fall?
- Rain is more likely to fall at Location 1 because the air is warmer there.
- Rain is more likely to fall at Location 2 because the air will be cooler there.
- It depends where the wind is blowing harder because where rain is more likely to fall does not depend on the air temperature, it only depends on how fast the wind is blowing.
- Rain is equally likely to fall at Location 1 and Location 2 because there is the same amount of water vapor in the air at both locations.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 686 | 2607 | 26% |
| Grades | |||
| 6–8 | 389 | 1618 | 24% |
| 9–12 | 297 | 986 | 30% |
| Gender | |||
| Male | 358 | 1214 | 29% |
| Female | 313 | 1348 | 23% |
| Primary Language | |||
| English | 609 | 2311 | 26% |
| Other | 56 | 226 | 25% |