Question

which of the following statements about freezing is true?
the energy level of the substance increases.
the energy level of the substance decreases.
the energy level of the substance remains the same.
the energy level of the substance makes it disappear.

Explanation:

Freezing is a phase change from liquid to solid. During this process, heat is removed from the substance, which means the thermal energy (and overall energy level related to molecular motion) decreases. The first option is incorrect as energy doesn't increase. The third is wrong because energy changes (decreases) during freezing. The fourth is illogical as substances don't disappear due to energy changes in freezing. So the correct statement is that the energy level decreases.

Answer:

B. The energy level of the substance decreases. (assuming the options are labeled A, B, C, D with A being the first option, B the second, etc.)