Question

jeans mother lights a candle and places it on his birthday cake. as everyone sings happy birthday, the wick burns, the wax melts, the candle changes shape, and the air around the candle heats up. which of the following is not an example of a physical change?
the air around the candle heating up.
the wick burning.
the wax melting.
the candle changing shape.

Explanation:

A physical change is a change in which no new substances are formed. Burning of the wick is a chemical change as new substances (like carbon dioxide, water vapor etc.) are formed due to combustion. Melting of wax, candle changing shape and air around candle heating up are physical changes as no new substances are formed in these processes.

Answer:

The wick burning.