Silver melts. Magnesium burns. Sulfur is a yellow solid. Aluminum conducts heat.
I gave my students this multiple choice question: Physical and chemical properties can be used to classify substances. Which of these shows a chemical property?

Only one answer is correct among these 4 choices:
- Silver melts.
- Magnesium burns.
- Sulfur is a yellow solid.
- Aluminum conducts heat.

Could you tell me which one is correct?

Magnesium burns.