Exploring Physical and Chemical Changes with Temperature

What is used to break the egg in the cooking demonstration?

• A spoon

• A knife

• The edge of a bowl

• A fork

What does the narrator apologize for during the cooking?

• Using a plastic utensil

• Not using ground pepper

• Using too much salt

• Cooking too slowly

What type of energy is the narrator using to change his hair?

• Solar energy

• Heat energy

• Mechanical energy

• Electrical energy

What is a chemical change?

• Change in state of matter

• Change in size

• Change in color

• Change in texture

Which example is not a physical change?

• Ice cream melting

• Water boiling

• Egg frying

• Ice freezing

Which of the following is affected by temperature in our lives?

• Frying eggs

• Cutting paper

• Charging a phone

• Writing with a pencil

What happens to ice cream as a result of a physical change?

• It condenses

• It melts

• It evaporates

• It freezes

Which activity involves boiling water?

• Making macaroni and cheese

• Making lemonade

• Freezing water

• Making ice cubes