CBSE Class 8 Science Question Paper Set 22

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Class 8 Science Solved Question Papers: CBSE Class 8 Science Question Paper Set 22

Review targeted exam resources with the CBSE Class 8 Science Question Paper Set 22. Built according to official CBSE standards for the 2026-27 academic year, these downloadable Class 8 Science question papers support effective revision and performance tracking.

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Access the complete question paper PDF for Class 8 Science below. Regular practice with these targeted exam papers builds familiarity with standard question patterns and helps secure higher marks in final evaluations.

SECTION – A
1. Give another term for fertilized egg. (1)
 
2. There is no fuel that could be considered as ideal fuel. Justify the statement giving two points.
 
3. Define light year. Why does pole star appear to be almost stationary? (2)
 
4. (a) What is blind spot in human eye? (2)
    (b) Why do we close our eyes when we move from dim light to bright light?
 
5. What may happen to a plant cell if cell wall and plastids are removed from it? (2)
 
6. (a) Why are bells made up of metals? (2)
    (b) Write two properties of metals that are used in making utensils for cooking food.
 
7. (a) Twelve-year old Lila always eats only dal and rice in every meal. She often falls ill and has become prone to diseases. Suggest changes in her diet which can
make her healthy and free from diseases.
    (b) What are the effects of increased activity of sweat and sebaceous glands?
 
8. (a) What are metalloids? Give one example. (2)
    (b) Name a non-metal which is
          i. used to disinfect water
          ii. used in fertilisers to enhance growth of plant.
 
9. (a) How do nerve cells help to control and coordinate the working of different parts of the body?
    (b) Write one point of difference between prokaryotic and eukaryotic cell.
 
10. Water is a commonly used fire extinguisher. Which condition of combustion is eliminated if we use water as a fire extinguisher? State two situations in which water
should not be used to extinguish fire.
 
11. Give reasons for the following: (2)
(a) Female frog lays hundreds of eggs in water.
(b) Reproduction is not necessary for survival even then this process is important for living beings.
 
12. Draw a neat diagram of a plant cell and label any four parts in it. (3)
 
13. What is constellation? Explain how you will locate star Sirius with the help of constellation Orion. Support your answer with suitable diagram.
 
14. (a) How is musical sound different from noise? Write any two measures that you will take as a student to reduce noise pollution.
     (b) How does a bird’s sound differ from a lion’s roar?
 
15. Write word equations for the following. (3)
(a) Ash obtained on burning magnesium ribbon is dissolved in water.
(b) Zinc granules are added to copper sulphate solution.
(c) Iron filings are added to dilute hydrochloric acid.
 
16. (a) State any two differences between comets and meteors. (3)
     (b) Why do we see only one side of the moon?
     (c) Write two distinctive features of the planet Saturn.
 
17. Give reasons for the following: (3)
(a) Solid NaCl does not conduct electricity but its aqueous solution does.
(b) Bubbles appear near electrodes when electric current is passed through acidified water.
(c) Distilled water is not fit for human consumption.
 
18. (a) Name one hormone secreted by the following endocrine glands: (2+2+1=5)
          i) Pancreas
         ii) Adrenal
        iii) Thyroid
        iv) Pituitary
    (b) State one function of the hormone secreted by the thyroid and adrenal gland.
    (c) Define the term ‘menopause’.
 
19. (a) Write an activity to show that sound needs a material medium for propagation.
      (b) Does any part of our body vibrate when we speak? Name the part and explain its working.
 
20. (a) Aahana wants to electroplate silver on a steel spoon. Draw a well labelled diagram of the set up indicating the material used for each electrode and the electrolyte.
      (b) Explain briefly the process of electroplating in the given case.
      (c) Write one advantage of electroplating silver on steel spoon.
 
21. (a) Write two points of differences between LPG & petrol used as fuels. 
     (b) Explain briefly two harmful effects of burning fuels on our environment.
OR
     (a) Certain amount of fuel on complete combustion produces 1,80,000 kJ of energy. If the calorific value of fuel is 80,000 kJ/kg, calculate the amount of fuel consumed.
     (b) Describe three zones of a candle flame.
 
22. (a) Explain with the help of a diagram the phenomenon of lightning between clouds and the earth.
      (b) Write any two precautions that you will take to protect yourself from lightning when you are in the playground.
OR
     (a) What is an earthquake? Explain how it occurs.
     (b) Write two safety measures that are taken by the architect to make the building quake safe.
 
23. (a) Draw a neat diagram of human female reproductive system and label any two  parts in it.
      (b) Compare the process of binary fission and budding (two points). Give one example each of organisms which reproduce by these methods.
(a) Name any two parts in the male reproductive system and state any one function of these parts.
(b) (i) Define metamorphosis.
     (ii) Can the changes observed in our body as we grow be called as metamorphosis. Justify giving suitable reason. Give two examples of organisms which undergo metamorphosis.
 
Please click the link below to download CBSE Class 8 Science Question Paper Set V.

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CBSE Class 8 Science Question Paper Set 22 & Previous Year Question Papers for Class 8 Science

Download CBSE Class 8 Science Question Paper Set 22 for Class 8 Science

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FAQs

Where can I download the official PDF for CBSE Class 8 Science Question Paper Set 22?

The CBSE Class 8 Science Question Paper Set 22 is available for download on StudiesToday.com. It includes complete set with all sections so that Class 8 students can practice with the exact same paper that came in the CBSE exams.

Are the solutions for CBSE Class 8 Science Question Paper Set 22 based on the official CBSE marking scheme?

Yes, the solutions for CBSE Class 8 Science Question Paper Set 22 are prepared by subject matter experts as per official marking scheme. Class 8 students will understand the structure of answers and 'step-marks' methodology Science.

How does solving CBSE Class 8 Science Question Paper Set 22 help in preparing for the 2026 exams?

Solving previous year papers like CBSE Class 8 Science Question Paper Set 22 is important to understand repeat themes and question difficulty levels of Science. It helps Class 8 students to test their time management skills too.

Can I access CBSE Class 8 Science Question Paper Set 22 in different languages?

Yes, where applicable, CBSE Class 8 Science Question Paper Set 22 is available in both English and Hindi mediums. All students from Class 8 can access Science study material in their preferred language.

Is there a charge to download the CBSE Class 8 Science solved papers?

No, all previous year question papers on StudiesToday, including CBSE Class 8 Science Question Paper Set 22, are provided free of charge in mobile-friendly PDF.