Which of these is not a chemical change?
A) the cutting of plywood
B) the digestion of food
C) the baking of a chocolate cake
D) the explosion of fireworks

Question

Quizplus · Accepted Answer

The cutting of plywood is a physical change as it does not alter the chemical properties of the material. The other options all involve chemical changes as new substances are created with different chemical properties.

Which of These Is Not a Chemical Change