Changes Around Us Quiz - CBSE Class 5 Science

Free practice quiz: Changes Around Us (CBSE Class 5 Science). 20 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 5 Science practice quiz has 20 multiple-choice questions on Changes Around Us, and 20 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. Which of the following is an example of a reversible change?

   1. Burning paper
   2. Melting ice
   3. Rusting iron
   4. Cooking an egg
   Show answer

   Answer: B. Melting ice

   Melting ice is a reversible change because it can be changed back to ice by freezing.

2. What kind of change is involved when sugar dissolves in water?

   1. Chemical change
   2. Irreversible change
   3. Physical change
   4. Permanent change
   Show answer

   Answer: C. Physical change

   Dissolving sugar in water is a physical change because the sugar can be recovered by evaporating the water.

3. Which of these scenarios does NOT involve a physical change?

   1. Breaking a glass
   2. Mixing salt and pepper
   3. Grinding coffee beans
   4. Baking a cake
   Show answer

   Answer: D. Baking a cake

   Baking a cake is not a physical change as it involves chemical reactions, resulting in new substances.

4. What type of change occurs when a candle burns?

   1. Physical change
   2. Chemical change
   3. Irreversible change
   4. Phase change
   Show answer

   Answer: B. Chemical change

   Burning a candle involves a chemical change as the wax reacts with oxygen, producing new substances like carbon dioxide and water.

5. What determines whether a change is reversible or irreversible?

   1. Change in mass
   2. Formation of new substances
   3. Color change
   4. Presence of heat
   Show answer

   Answer: B. Formation of new substances

   The formation of new substances determines whether a change is irreversible, as these changes cannot be undone by simple physical means.

More questions in this quiz

Answers and explanations are in the full quiz.

1. What is the change called when milk turns into curd?
2. Which of the following is a chemical change?
3. If you freeze juice to make ice-lollies, is it a reversible or irreversible change?
4. Which process can be used to separate a mixture of salt and water?
5. What is the effect of heating on the shape of an object?
6. Why is rusting considered a chemical change?
7. Which factor does NOT affect the rate of a chemical change?
8. Which of the following involves a physical change?
9. Why is cutting fruits considered a physical change?
10. Which statement best describes sublimation?
11. Which type of change is involved in the formation of clouds?
12. Which happens when a metal is heated?
13. Which of the following changes indicates a chemical reaction has occurred?
14. Why does a cut apple turn brown when exposed to air?
15. In what way does boiling differ from evaporation?

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