Item AM036003: Water spilled on the floor will eventually disappear because the water molecules become a gas and are now part of the air.
You spill a little water on a tile floor but don’t have time to wipe it up. A few hours later, most of the water is gone. What happened to the water?
- The water molecules were destroyed.
- The water molecules got smaller and now take up less space.
- The water molecules became a gas and are now part of the air.
- The water molecules broke down into hydrogen and oxygen atoms, which are now in the air.
- Distribution of Responses
![Chart showing distrubtion of responses for Item WC036003](http://chart.apis.google.com/chart?chs=265x180&cht=bvg&chf=bg,s,00000000&chco=76A4FB|76A4FB|339933|76A4FB&chds=0,100&chd=t:6,9,48,37&chxl=0:|A|B|C|D&chxt=x,y&chbh=a&chbw=a&chm=N*f0*%,000000,0,-1,11,,e::5&filename=WC036003-dist.png)
- Students Responding Correctly
Group | Correct | Total | Percent |
---|---|---|---|
Overall | 1390 | 2893 | 48% |
Grades | |||
6–8 | 846 | 1856 | 46% |
9–12 | 542 | 1029 | 53% |
Gender | |||
Male | 722 | 1427 | 51% |
Female | 653 | 1435 | 46% |
Primary Language | |||
English | 1261 | 2543 | 50% |
Other | 106 | 300 | 35% |
- Disciplinary Core Ideas
- ESS2.C Water continually cycles among land, ocean, and atmosphere via transpiration, evaporation, condensation and crystallization, and precipitation, as well as downhill flows on land.
- Notes
- An atomic-molecular understanding of evaporation is reasonable to expect at the middle and high school levels.