Which of the following is an example of a physical change?

Question

A
sugar and oxygen reacting to produce water and carbon dioxide

B
honey dissolving in tea

C
a raw egg being cooked

D
metal rusting after being left out in the rain

Answer 1

The correct answer is:

B. honey dissolving in tea

This is an example of a physical change because the composition of the honey and tea does not change; they are simply mixing together. In contrast, the other options involve chemical changes where new substances are formed.