CBSE Class 9th Science Previous Year Question Paper 2019 SET B & A PDF Download


CBSE Class 9th Science Previous Year Question Paper 2019 SET A & B PDF Download :- CBSE Class 9 previous year question paper is a collections of important questions and its main focus is to help students prepare for their examinations in a better manner. It has become imperative for students to understand that Class 9 is a very important year and sets the course for the next years. By using previous year question paper, students will be able to make more thorough preparations and study harder. Class 9 previous year question paper science will test students’ knowledge of chemistry, physics, and biology. Students will have a better understanding of the question paper pattern and what could potentially come in their examination. (99 Knowledge Hours) is a platform that provides free CBSE Solutions (NCERT) and other study materials for students. Download Class 9 Science Previous Year Question Paper to help you to revise the complete syllabus and score more marks in your examinations.

CBSE Question paper 2019 (Set-2)
Class 9 Science 

Time : 3 Hrs.
M.M. : 80


  • All questions are compulsory.
  • Q1 and Q2 are 1 mark questions
  • Q3 to Q5 are 2 marks questions.
  • Q6 to Q15 are 3 marks questions.
  • Q16 to Q21 are 5 marks questions.
  • Q22 to Q27 are based on practical skills. Each question is a 2 marks question.
  •  Answer the two sections separately in fair and neat handwriting.


1. Convert the following temperature to Celsius scale:

  • 300 k
  • 573 k

2. Convert the following temperature to Kelvin scale.

  • 25∘c
  • 3730c

3. How is our atmosphere different from the atmosphere on Venus and Mars?

4. What are macro-nutrients and why are they called macro-nutrients?

5. A tube light consumes 2000 J of electrical energy in 20 seconds. What is its power?

6. Calculate the wavelength of sound wave whose frequency is 360 HZ and speed is 60 m/s in a given medium?

7. What is the criterion for classification of organisms as belonging to kingdom monera or protista?

8. What are the advantages of composite fish culture?

9. What is pasturage and how is it related to honey production?

10. What produces more severe burns, boiling water or steam?

11. Find the molecular mass or formula mass of:

  • C2H6
  • SO2
  • CL2
  • CH4

12. What are the limitations of JJ Thomson’s model of atom and Rutherford’s model of atom?

13. Why is the cell called the structural and functional unit of life?

14. What are the functions of stomata? Draw a well labelled diagram of stomata?

15. Explain why the ceilings of the concert halls curved?


  • What is reverberation? How can it be reduced?
  • Derive graphically:
    • v2 -u2 = 2as, 
    • S=ut+12at2

17. Draw a neat labelled and explain how the human ear works?


  • Why we are normally advised to take bland and nourishing food when we are sick?
  • Differentiate between acute and chronic disease. 


  • What is the difference between ‘Broilers and layers’ and in their management?
  • Which method is commonly used for improving cattle breed and why?


  • Explain the working and application of SONAR? Make diagram also.
  • What are the desirable characters of bee varieties suitable for honey production?


  • How do poriferan animals differ from coelenterate animals?
  • Give reasons-
    • (i) Naphthalene balls disappear without leaving any solid.
    • (ii) We can get smell of perfume sitting several metres away.


22. While performing an experiment in class, Pooja found an animal which has an open circulatory system is blood filled coelomic cavity and has jointed legs?

  • To which group will Pooja classify this animal?
  • Name the largest phylum of the animal kingdom and write two characteristics of this group.


  • What happen when magnesium is burnt in the air?
    • Magnesium is deoxidized
    • Magnesium gets oxidized
    • Magnesium forms compound with water vapour
    • Magnesium forms a compound with hydrogen
  • Write the chemical equation of the reaction when magnesium ribbon is burnt in the air? What kind of reaction it is?

24. In a laboratory experiment, a compound x was strong heated , it changes its colour into off white after losing its water of crystallization.

  • Identify the compound x and write its chemical formulas
  • What is “blue vitriol”.

25. Write common chemical compound and their formulas:

26. To verify the laws of reflection of sound, Ashok put the pipe at an angle of 40∘ to the reflecting surface. At what angle to QR should he keep the other pipe to receive the reflected sound distinctly?


  • A sound wave strikes a high wall perpendicularly. What will be the angle; of incidence for sound wave?

  • What kind of wave is sound wave?

CBSE Class 9th 2019 Question Paper PDF Download

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Read & Download SET AClick Here
Science Previous Question Paper 2019 SET A DownloadPDF Download (Coming Soon)
Science Previous Question Paper 2019 SET B DownloadPDF Download (Coming Soon)

Important Questions Class 9th ~ Hindi

No.Chapter Name
1.दो बैलों की कथा
2.ल्हासा की ओर
3.साँवले सपनों की याद
4.नाना साहब की पुत्री देवी मैना को भस्म कर दिया गया
5.प्रेमचंद के फटे जूते
6.मेरे बचपन के दिन
7.साखियाँ एवं सबद
10.कैदी और कोकिला
11.मेरे संग की औरतें
12.रीढ़ की हड्डी

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