NCERT Class 7 Science Quiz

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NCERT Class 7 Science Quiz


NCERT Class 7 Science QuizVersión en línea NCERT-based questions por Aashvi Gupta 1 1. Which material allows electric current to pass through it easily? a D. Wood b A. Plastic c C. Rubber d B. Copper 2 2. The purpose of a switch in an electric circuit is to: a D. Measure current b A. Produce electricity c B. Open or close the circuit d C. Store electricity 3 3. Which of the following is an insulator? a D. Copper b C. Rubber c B. Aluminium d A. Iron 4 4. Which component provides electrical energy in a simple circuit? a C. Wire b A. Bulb c B. Cell d D. Switch 5 5. A bulb glows only when the circuit is: a D. Long b A. Broken c C. Wet d B. Complete 6 6. The thin wire inside an electric bulb is called: a D. Rod b C. Electrode c B. Filament d A. Coil 7 7. Which combination will light a bulb? a B. Bulb + Switch b D. Cell + Wire only c A. Cell + Bulb (without wires) d C. Cell + Wires + Bulb in a closed circuit 8 8. Which of these is used to connect components in a circuit? a B. Conducting wires b A. Plastic strips c C. Glass rods d D. Cotton thread 9 9. Which of these is a metal? a C. Iron b A. Sulphur c D. Phosphorus d B. Carbon 10 10. Which of these is a non-metal? a B. Sulphur b A. Copper c D. Aluminium d C. Zinc 11 11. Metals are generally: a B. Lustrous b A. Dull c D. Transparent d C. Soft like cotton 12 12. Which property allows metals to be drawn into wires? a D. Elasticity b B. Ductility c A. Malleability d C. Hardness 13 13. Metals can be beaten into thin sheets because they are: a A. Malleable b B. Brittle c C. Soft d D. Flexible 14 14. Which of these is a poor conductor of electricity? a B. Copper b A. Silver c C. Sulphur d D. Aluminium 15 15. Which metal is commonly used for electrical wiring? a D. Tin b B. Copper c A. Iron d C. Lead 16 16. Rust forms on: a A. Copper b B. Iron c C. Gold d D. Aluminium 17 17. Which of the following is a physical change? a A. Burning paper b C. Rusting iron c B. Melting ice d D. Cooking food 18 18. Which of the following is a chemical change? a D. Freezing water b A. Tearing paper c B. Burning wood d C. Melting wax 19 19. A chemical change usually: a D. Changes only size b C. Changes only shape c B. Forms a new substance d A. Can always be reversed 20 20. Which process is reversible? a A. Rusting b C. Freezing water c B. Burning d D. Cooking rice 21 21. Which of these is an irreversible change? a C. Freezing juice b D. Boiling water c B. Baking a cake d A. Melting butter 22 22. Rusting of iron requires: a C. Salt only b D. Heat only c A. Sunlight only d B. Air and moisture 23 23. Which of these is an example of a chemical change? a C. Curdling of milk b D. Cutting paper c B. Breaking glass d A. Dissolving sugar in water 24 24. Which of these does NOT produce a new substance? a D. Cooking vegetables b C. Rusting iron c B. Burning a candle wick d A. Cutting a piece of cloth 25 25. Which statement is correct? a B. Most chemical changes are irreversible. b C. Rusting is a physical change. c A. All physical changes are irreversible. d D. Melting ice is a chemical change.

NCERT Class 7 Science Quiz

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NCERT Class 7 Science QuizVersión en línea

por Aashvi Gupta

1. Which material allows electric current to pass through it easily?

2. The purpose of a switch in an electric circuit is to:

3. Which of the following is an insulator?

4. Which component provides electrical energy in a simple circuit?

5. A bulb glows only when the circuit is:

6. The thin wire inside an electric bulb is called:

7. Which combination will light a bulb?

8. Which of these is used to connect components in a circuit?

9. Which of these is a metal?

10. Which of these is a non-metal?

11. Metals are generally:

12. Which property allows metals to be drawn into wires?

13. Metals can be beaten into thin sheets because they are:

14. Which of these is a poor conductor of electricity?

15. Which metal is commonly used for electrical wiring?

16. Rust forms on:

17. Which of the following is a physical change?

18. Which of the following is a chemical change?

19. A chemical change usually:

20. Which process is reversible?

21. Which of these is an irreversible change?

22. Rusting of iron requires:

23. Which of these is an example of a chemical change?

24. Which of these does NOT produce a new substance?

25. Which statement is correct?