1. Physical and Chemical Changes
By Mark Becker

2. Physical change
Is a change in size, shape, or state of matter that does not create a new kind of matter.
Grinding, melting, dissolving, and evaporating are all examples of physical change.

3. Examples of physical changes:
Ice melting to the heat
Crushing paper with force.

4. Chemical change
Is a change in matter that produces new kinds of matter with different properties.
Decomposing, burning, and rusting are all examples of chemical change.

5. Examples of chemical changes:
Diet soda with mentos.
Burning paper with fire.

6. TAKE A GUESS: Is it a chemical or physical change
TAKE A GUESS: Is it a chemical or physical change? -cracking eggs -Baking a cake -glass breaking -boiling water -lighting up a firework

7. Answers are: -cracking eggs (physical change) -Baking a cake (chemical change) -glass breaking (physical change) -boiling water (physical change) -lighting up a firework (chemical change)

8. Thanks for watching the PowerPoint!