Chemical and Physical Changes Quiz

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Understanding the distinction between physical and chemical changes is essential to chemists, as it helps us identify substances, predict and control reactions, ensure lab safety, and advance research and technological innovation through precise characterization of substances and reactions.

But how well do you understand the differences between physical and chemical changes? Can you accurately tell whether a change is a physical or chemical change?  Let’s test your knowledge! You can also challenge others on this physical and chemical change quiz to see who knows more. Have fun while learning this interesting chemistry concept. Do not forget to share.

NOTE: We’ve included explanations for some of the more challenging questions, but should you encounter any confusion with a particular question or answer, don’t hesitate to brush up on your knowledge by revisiting this post: Physical and chemical changes

Physical and Chemical Changes Quiz

1 / 25

Which of the following best describes a physical change?

2 / 25

Is dissolving common salt in water a chemical or physical change?

3 / 25

Classify this as a physical or chemical change: Electrical conduction by copper wire

4 / 25

Which of the following is a characteristic of chemical changes?

5 / 25

During a physical change, what happens to the chemical composition of a substance?

6 / 25

Is the formation of clouds in the air a chemical or physical change?

7 / 25

While preparing for movie night, Sarah melts butter in a saucepan to drizzle over freshly popped popcorn. What type of change occurs when the butter changes from solid to liquid?

8 / 25

Classify this as a physical or chemical change: mixing lemonade powder into water

9 / 25

What distinguishes chemical changes from physical changes?

10 / 25

During dessert preparation, Emily whips cream until it thickens and forms soft peaks. What kind of change occurs as the cream is whipped?

11 / 25

Classify this as a physical or chemical change: Grass growing on a lawn

12 / 25

Cooking a pancake cooking on a griddle is an example of what type of change?

13 / 25

When hydrated copper sulfate is heated in air, what types of change take place?

14 / 25

While on a hike, Jessica notices acid rain dripping onto limestone rocks, causing them to fizz and release bubbles. What type of change is occurring as the limestone reacts with the acid rain?

15 / 25

Is heating of naphthalene a chemical or physical change?

16 / 25

When the chemical properties of a substance change temporarily, but the new substance can revert to its initial state under specific conditions, this change is called:

17 / 25

Is making fruit salad with raw fruits a chemical or physical change?

18 / 25

Which type of change involves the release or absorption of heat energy?

19 / 25

Classify this as a physical or chemical change: Milk going sour

20 / 25

What happens during a chemical change?

21 / 25

Boiling an egg boils in water is an example of what type of change?

22 / 25

Which of the following is not a chemical change?

23 / 25

During a science experiment, Mark ignites a strip of magnesium ribbon, and it produces a bright white light and white smoke. What type of change occurs as the magnesium burns in the air?

24 / 25

Which of the following is a physical change?

25 / 25

Heating and cooling zinc oxide is an example of what type of change?

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The average score is 48%

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