A matchstick is lit and turns black is phisical change?
Answer (1)
No, when a matchstick is lit and turns black (burns), it is a chemical change, not a physical change. This is because burning causes a chemical reaction called combustion, where the substances in the match head combine with oxygen producing new substances like ash, carbon dioxide, and water vapor. The color change to black (char) shows a new material forming, and the process releases heat and light, all characteristics of a chemical change.
