You are working with a certain material. It looks different than when you first started working with it. Has it definitely undergone a chemical change? Yes or no? Explain.
No - various explanations
A change in the size, shape or state of matter with no new material being formed. Physical or chemical change?
physical change
How do chemical changes create new substances?
breaking chemical bonds and creating new ones
Unlock this slideshow and over 4 million more with Baamboozle+