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 CL007002: Ocean currents form when warm water rises and cold water sinks.
What causes ocean currents to form?
- Ocean currents form when cold water rises and warm water sinks.
- Ocean currents form in water when warm water rises and cold water sinks.
- The rising and sinking of water cannot cause ocean currents to form. Ocean currents form when cold water moves along the surface of the earth toward warmer water.
- The rising and sinking of water cannot cause ocean currents to form. Ocean currents form only when wind pushes the water.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 776 | 2090 | 37% |
| Grades | |||
| 6–8 | 380 | 1003 | 38% |
| 9–12 | 394 | 1079 | 37% |
| Gender | |||
| Male | 386 | 1019 | 38% |
| Female | 368 | 1011 | 36% |
| Primary Language | |||
| English | 659 | 1718 | 38% |
| Other | 80 | 247 | 32% |