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How do the molecules of cold water differ from the molecules of hot water?

  1. The molecules of cold water move faster than the molecules of hot water.
  2. The molecules of cold water move slower than the molecules of hot water.
  3. The molecules of cold water move at the same speed as the molecules of hot water.
  4. It is not possible to say anything about how the molecules differ without more information.
Distribution of responses
Answer Choice
Overall
Grades
Gender
Primary Language
 
n = 2895
6–8
n = 1778
9–12
n = 1109
Male
n = 1381
Female
n = 1473
English
n = 2588
Other
n = 275
A. The molecules of cold water move faster than the molecules of hot water. 14% 16% 11% 13% 15% 14% 20%
B. The molecules of cold water move slower than the molecules of hot water. 64% 59% 72% 66% 63% 66% 49%
C. The molecules of cold water move at the same speed as the molecules of hot water. 11% 12% 9% 11% 11% 10% 18%
D. It is not possible to say anything about how the molecules differ without more information. 10% 12% 8% 10% 10% 10% 13%