Experiment of December 9, 2023:

The time to submit an answer is over. You can now view the solution of the experiment.

Solution video:



What does Mr. Santa observe when he quickly puts both cups in the freezer compartment of his refrigerator and looks at them again after about 2 hours?

A) The hot water forms a smooth ice surface, the cold one a wavy one.

B) The cold water forms a smooth ice surface, the hot water a wavy one.

C) The hot water does not freeze, the cold water does.

D) Hot water freezes, cold water does not.

Advice of the day:

Caution! You can scald yourself when experimenting with hot water. Please only carry out this experiment when accompanied by an adult and wearing protective gloves or oven mitts.