Original Project
Weather and Climate II: Seasonal Differences
Item CL138001: As a jar of water is warmed from the bottom, the water at the bottom of the jar becomes warmer than the water around it and starts to rise.
A jar of water is placed over a flame and the flame warms the water at the bottom of the jar.
What happens to the water at the bottom of the jar before it boils?
- As the water at the bottom of the jar becomes a little warmer than the water around it, the warmer water will start to rise.
- The water at the bottom of the jar will get warmer, but it will not rise.
- The water at the bottom of the jar will get warmer and warmer, but it will not rise until it starts to boil.
- All of the water in the jar will get warmer at the same time, so there is no movement of the water in the jar.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
|||
|---|---|---|---|---|---|---|---|
| n = 4621 |
6–8 n = 2431 |
9–12 n = 2167 |
Male n = 2259 |
Female n = 2201 |
English n = 3867 |
Other n = 521 |
|
| A. | 54% | 50% | 58% | 55% | 53% | 54% | 50% |
| B. | 8% | 8% | 8% | 8% | 7% | 8% | 7% |
| C. | 33% | 36% | 30% | 31% | 36% | 33% | 36% |
| D. | 5% | 6% | 5% | 6% | 4% | 5% | 7% |