Physical and Chemical Changes Quiz

What is a physical change?

• A change in which a new substance is formed

• A change in the appearance or state of a substance without forming a new substance

• A change that cannot be reversed

• A change that produces heat and light

What is a chemical change?

• A change that only affects the state of matter

• A change in which one or more new substances are formed

• A change that is always reversible

• A change in size and shape

Which of the following is an example of a physical change?

• Burning wood

• Rusting iron

• Melting ice

• Baking a cake

Which of the following is an example of a chemical change?

• Freezing water

• Cutting paper

• Dissolving sugar in water

• Digesting food

Is melting ice a physical or chemical change?

• Physical change

• Chemical change

• Both

• Neither

Is burning paper a physical or chemical change?

• Physical change

• Chemical change

• Both

• Neither

What happens to the molecules in a substance during a physical change?

• They form new substances

• They break down into atoms

• They remain the same but change their arrangement

• They disappear

What happens to the molecules in a substance during a chemical change?

• They remain the same

• They change their arrangement without forming new substances

• They form new substances with different properties

• They evaporate

Can a physical change be easily reversed?

• Yes, always

• No, never

• Sometimes

• Only in some cases

Can a chemical change be easily reversed?

• Yes, always

• No, never

• Sometimes

• Only in some cases