Chemical vs. Physical Change 8th Grade

Physical Change A change that alters the appearance of a material but doesn’t make that material into something new Examples: Tearing Paper Chopping Wood Molding Clay Cutting Hair Mixing Salt and Pepper DOES NOT form a new substance

Chemical Change A change in matter that produces a new substance Examples: Fireworks Food rotting Lighting a match This type of change CANNOT be reversed!

5 clues to a Chemical change Color Change Gas given off(bubbles) fire New substance formed Temperature change

Physical or Chemical Change? Physical Change

Physical or chemical change? Hammering wood together Physical Change

Physical or chemical Change? Rusty Bike Chemical Change

Physical or Chemical change? Melting Butter Physical Change

Physical or chemical change? Rotting food Chemical Change

Physical or Chemical Change? Mixing Kool-Aid powder in water Physical Change

Physical or chemical change? Mowing the grass Physical Change

Physical or chemical change? Bleaching your hair Chemical Change

Physical or chemical change? Fireworks exploding Chemical Change

Physical or chemical change? Squeezing oranges to make orange juice Physical Change

Physical or chemical change? Frying an egg Chemical Change

Physical or chemical change? Burning leaves Chemical Change

Physical or chemical change? Cream being whipped Physical Change

Physical or chemical change? Burnt toast Chemical Change

Physical or chemical change? Melting Ice cream Physical Change