Item AM049003: The distance between water molecules increases when a cup of cold water warms up to room temperature.

What happens when a cup of cold water warms up to room temperature?

  1. The size of the water molecules decreases.
  2. The number of water molecules increases.
  3. The mass of the water molecules decreases.
  4. The distance between the water molecules increases.
Distribution of responses
Answer Choice
Overall
Grades
Gender
Primary Language
 
n = 2900
6–8
n = 1858
9–12
n = 1033
Male
n = 1429
Female
n = 1439
English
n = 2548
Other
n = 302
A. The size of the water molecules decreases. 16% 17% 12% 15% 15% 15% 18%
B. The number of water molecules increases. 20% 23% 13% 18% 21% 19% 26%
C. The mass of the water molecules decreases. 19% 21% 16% 19% 19% 18% 25%
D. The distance between the water molecules increases. 46% 39% 59% 48% 44% 48% 30%