Chemical and Physical Change

Question 1

What is a physical change?

Answer 1

When a substance changes state

Question 2

What is a chemical change?

Answer 2

When a new substance is formed as a result of change

Question 3

Is this an example of chemical or physical change:

Burning wood

Answer 3

Chemical, the process can’t be reversed

Question 4

Is a physical or chemical change easier to reverse?

Answer 4

Physical