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

Question

1. sugar and oxygen reacting to produce water and carbon dioxide
2. honey dissolving in tea
3. a raw egg being cooked
4. metal rusting after being left out in the rain

Answer 1

The example of a physical change from the options provided is:

2. honey dissolving in tea

Dissolving is a physical change because the substance (honey) retains its chemical properties even after it has mixed with the tea. The other options represent chemical changes, where new substances are formed.