Class 8 Science: Sample Paper - 2 | Sample Papers For Class 8 PDF Download

Time: 3 hrs
Total Marks: 80

General Instructions:

This question paper consists of 31 questions in total and all questions are compulsory.

• Questions 1-7 are multiple-choice questions and each carries 1 mark. Write the correct answer in your answer sheet.
• Questions 8-16 are very short-answer questions and carry 2 marks each.
• Questions 17-26 are short-answer questions and carry 3 marks each.
• Questions 27-31 are long-answer questions and each carries 5 marks.

Section - A

Q1. Which of the following is a non-renewable source of energy?   (1 mark)
(a) Wind energy
(b) Solar energy
(c) Coal
(d) Hydro energy

Q2. Which method is used to separate cream from milk?   (1 mark)
(a) Sedimentation
(b) Filtration
(c) Centrifugation
(d) Evaporation

Q3. The outermost layer of a plant cell is:   (1 mark)
(a) Nucleus
(b) Cytoplasm
(c) Cell wall
(d) Cell membrane

Q4. Which of the following is an example of non-contact force?   (1 mark)
(a) Friction
(b) Muscular force
(c) Magnetic force
(d) Force of hand while pushing

Q5. Which gas is produced during photosynthesis?   (1 mark)
(a) Carbon dioxide
(b) Oxygen
(c) Nitrogen
(d) Methane

Q6. Which of the following is a non-biodegradable material?   (1 mark)
(a) Paper
(b) Glass
(c) Cotton
(d) Cow dung

Q7. The SI unit of pressure is:   (1 mark)
(a) Newton
(b) Pascal
(c) Joule
(d) Watt

Section - B

Q8. Define aquifer. Why is it important?   (2 mark)

Q9. Write two uses of convex mirrors.   (2 mark)

Q10. Differentiate between herbivores and carnivores with one example each.   (2 mark)

Q11. Why does a freely suspended magnet always rest in the north-south direction?   (2 mark)

Q12. Name two diseases caused by viruses.   (2 mark)

Q13. State two differences between metals and non-metals.   (2 mark)

Q14. What are two disadvantages of friction?   (2 mark)

Q15. Why do astronauts wear special space suits?   (2 mark)

Q16. Define manures. Give one example.   (2 mark)

Section - C

Q17. Explain sedimentation and decantation with examples.   (3 mark)

Q18. State differences between heat and temperature. Give examples.   (3 mark)

Q19. Why is water called a universal solvent? Explain with an example.   (3 mark)

Q20. Explain the process of photosynthesis with a word equation.   (3 mark)

Q21. How are earthquakes measured? What are their effects?   (3 mark)

Q22. Describe the structure and function of the human heart.    (3 mark)

Q23. Give reasons:   (3 mark)
(a) We should not waste paper.
(b) Plastic bags should be banned.

Q24. What is a constellation? Explain with two examples.   (3 mark)

Q25. How does a simple electric circuit work? Draw a labelled diagram.   (3 mark)

Q26. How does the use of fossil fuels affect the environment?   (3 mark)

Section - D

Q27. (a) Define agriculture.   (5 mark)
(b) Explain two modern methods of irrigation with examples.
(c) State their advantages.

Q28. (a) Define reflection of sound.   (5 mark)
(b) Explain echo with conditions for its formation.
(c) Mention two applications of echo in daily life.

Q29. (a) What is global warming?   (5 mark)
(b) Mention three harmful effects of global warming.
(c) Suggest two ways to control it.

Q30. (a) What are simple pendulums?   (5 mark)
(b) Derive the relation between time period and length.
(c) Explain one daily-life application of pendulum.

Q31. (a) Define synthetic fibres.   (5 mark)
(b) Mention two advantages and two disadvantages of synthetic fibres.
(c) Give two examples of synthetic fibres and their uses.