Question

1. Define physical change.

2. What are some examples of physical change?
3. The wood in the Figure below is being cut with a chainsaw. Is this a physical change?
Why or why not?

Answer 1

1. A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another. The size or shape of matter may be changed, but no chemical reaction occurs.
2. Crushing a can.
Melting an ice cube.
Boiling water.
Mixing sand and water.
3.it is a physical change because in a physical change is usually easy to see.