Changes in Materials Quiz - CBSE Class 6 Science

Free practice quiz: Changes in Materials (CBSE Class 6 Science). 19 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 6 Science practice quiz has 19 multiple-choice questions on Changes in Materials, and 19 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. What is an example of a physical change?

   1. Burning paper
   2. Rusting iron
   3. Melting ice
   4. Baking a cake
   Show answer

   Answer: C. Melting ice

   An example of a physical change is melting ice, as the substance remains the same, just in a different state.

2. If ice melts into water, what type of change is this?

   1. Chemical change
   2. Physical change
   3. Biological change
   4. Nuclear change
   Show answer

   Answer: B. Physical change

   Melting ice into water is a physical change because it only changes state.

3. When vinegar is mixed with baking soda, what type of change occurs?

   1. Physical change
   2. Chemical change
   3. Biological change
   4. No change
   Show answer

   Answer: B. Chemical change

   Mixing vinegar with baking soda produces carbon dioxide gas, demonstrating a chemical change.

4. Which item represents a change in state?

   1. Steam from boiling water
   2. Ice melting
   3. Salt dissolving in water
   4. All of the above
   Show answer

   Answer: D. All of the above

   All options depict changes in state or dissolving processes that alter material forms.

5. What type of reaction occurs when two or more substances combine to make a new substance?

   1. Decomposition
   2. Synthesis
   3. Single replacement
   4. Double replacement
   Show answer

   Answer: B. Synthesis

   A synthesis reaction involves two or more substances combining to form a new compound.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Which of the following is a chemical change?
2. What happens to the molecules during a physical change?
3. Which of these is not an indicator of a chemical change?
4. Which statement about metals during oxidation is true?
5. What is the result of heating sugar to a high temperature?
6. If a metal is corroding, what type of change is happening?
7. How can you tell whether a gas is produced in a reaction?
8. What describes the change when water evaporates?
9. What happens during the process of respiration?
10. What is a sign of a chemical reaction?
11. In a chemical reaction, what happens to the reactants?
12. If 10 grams of salt are dissolved in 90 grams of water, what will be the total mass of the solution?
13. During photosynthesis, what are the reactants?
14. What is the significance of a catalyst in a chemical reaction?

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