Original Project
Weather and Climate I: Basic Elements
Item WC006001: The amount of water vapor in the air can increase and it can decrease.
Which of the following statements is TRUE about changes to the amount of water vapor in air at a particular place over time?
- The amount of water vapor in air can increase, but it cannot decrease.
- The amount of water vapor in air can decrease, but it cannot increase.
- The amount of water vapor in air can increase, and it can decrease.
- The amount of water vapor in air cannot change.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 1148 | 2285 | 50% |
| Grades | |||
| 6–8 | 708 | 1410 | 50% |
| 9–12 | 439 | 873 | 50% |
| Gender | |||
| Male | 558 | 1083 | 52% |
| Female | 579 | 1169 | 50% |
| Primary Language | |||
| English | 1023 | 2038 | 50% |
| Other | 99 | 189 | 52% |