Physical vs Chemical Changes Quiz

Which of the following best describes a physical change?

• A change that results in the formation of a new substance

• A change that affects the appearance or state of a substance, but not its chemical composition

• A change that always produces heat and light

• A change that cannot be reversed

Which of the following is a chemical change?

• Melting ice

• Dissolving sugar in water

• Burning wood

• Breaking glass

What is an example of a physical change?

• Rusting of iron

• Boiling water

• Baking a cake

• Digesting food

Which of the following is NOT an indicator of a chemical change?

• Change in colour

• Change in state (solid to liquid)

• Formation of a gas

• Production of heat or light

Which statement is true about chemical changes?

• They are always reversible

• They do not produce new substances

• They result in the formation of one or more new substances

• They only occur at high temperatures

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

• Freezing water to make ice

• Tearing a piece of paper

• Iron nail rusting

• Crushing a can

Which of the following is a physical change?

• Burning a candle

• Mixing sand and salt

• Cooking an egg

• Milk turning sour

What is a common indicator that a chemical change has occurred?

• The substance changes shape

• The substance changes size

• A new substance is formed

• The substance is dissolved

Which of the following changes is usually reversible?

• Baking bread

• Melting chocolate

• Burning paper

• Frying an egg

Which of the following is NOT a physical change?

• Evaporating water

• Chopping wood

• Iron rusting

• Crushing ice