Original Project
Weather and Climate II: Seasonal Differences
Temperature variations in fluids such as air and water lead to currents that circulate the fluid, and this circu…
Item CL006002: Air currents form when warm air rises and cold air sinks.
What causes air currents to form?
- Air currents form when cold air rises and warm air sinks.
- Air currents form when warm air rises and cold air sinks.
- The rising and sinking of air does not create air currents. Air currents form when cold air moves along the surface of the earth toward warmer air.
- The rising and sinking of air cannot cause air currents to form. Air currents form only because of the rotation of the earth.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 894 | 2148 | 42% |
| Grades | |||
| 6–8 | 399 | 1068 | 37% |
| 9–12 | 492 | 1070 | 46% |
| Gender | |||
| Male | 424 | 1034 | 41% |
| Female | 444 | 1045 | 42% |
| Primary Language | |||
| English | 773 | 1824 | 42% |
| Other | 73 | 229 | 32% |