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 WC089001: Clouds form anywhere there is moist air that cools to form tiny water droplets.
Where, if anywhere, can new clouds form?
- New clouds cannot form anywhere. Wind pushes existing clouds from one place to another.
- Although clouds can be pushed from one place to another by wind, new clouds form only near factories and cities because clouds need pollution to form.
- Although clouds can be pushed from one place to another by wind, new clouds form only over lakes or oceans, because clouds need a body of water below them to form.
- New clouds can form wherever there is moist air that cools to form tiny droplets of water.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 388 | 1037 | 37% |
| Grades | |||
| 6–8 | 272 | 680 | 40% |
| 9–12 | 116 | 357 | 32% |
| Gender | |||
| Male | 174 | 480 | 36% |
| Female | 210 | 538 | 39% |
| Primary Language | |||
| English | 355 | 910 | 39% |
| Other | 29 | 104 | 28% |