Access and download CBSE Class 9 Science Question Paper Set 20, carefully designed as per the latest 2026-27 examination guidelines issued by CBSE, NCERT, and KVS. These Class 9 Science previous year question papers include detailed solutions, helping students to assess their performance and identify and improve key areas before the final exams.
Download Class 9 Science Question Paper Solutions
Check out these Class 9 Science question papers to get familiar with actual test rules and scoring systems. Solving these papers regularly sharpens your time management and problem-solving accuracy. Access the complete CBSE Class 9 Science Question Paper Set 20 to practice at home.
Get Class 9 Science Previous Year Paper PDF
CBSE Class 9 Science Question Paper Set A. Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.
SCENCE
1 In an experiment showing law of conservation of mass why is it necessary to put a cork to the mouth of the flask ?
2 From the symbol 40 /18Ar write down the number of neutrons present in the nucleus of the atom.
3 What was the modifications introduced by Carl Woese, in the classification proposed by Whittaker ?
4 Identify which of the following sounds is musical and which one is the noise. Give also the reason :
(a) Sound of an Orchestra
(b) Sound at a railway platform
5 State the conditions under which a body will sink or float in a fluid.
6 (a) Define polyatomic ion.
(b) Write the name of the compound (NH4)2SO4 and mention the ions present in it.
7 (a) What are the limitations of J.J Thomsons model of an atom.
(b) Describe the α-particle scattering experiment carried out by Rutheford.
8 (i) Write the chemical formula of magnesium hydroxide.
(ii) Calculate the number of aluminum ions present in 0.051 g of aluminium oxide [Atomic Mass of Al=27 u]
9 Write three characteristics each of the following phyla of animals :
(a) Porifera (b) Coelenterata
10 (a) For the prevention of infectious diseases, some public health programmes of childhood immunisation are conducted in the country. Name four such diseases which are covered under this programme.
(b) Name a disease which has been eradicated from the world, state the principle behind its eradication.
11 State giving reasons whether the following statements are correct or not.
(i) Our surrounding area should be free from stagnant water.
(ii) Staying clean is not necessary as long as you eat a balanced diet.
(iii) Social equality and harmony are necessary for good health.
Please click the link below to download pdf file of CBSE Class 9 Science Question Paper Set A.
Free study material for Science
Download CBSE Question Papers: Class 9 Science
Last 10 Years Question Papers for Class 9 Science
Exam preparation for Class 9 students requires solving the CBSE Class 9 Science Question Paper Set 20 provided above. Easily download these past papers for Class 9 Science available in PDF format for the last 10 years. Regular drills on real past papers build absolute familiarity with question styles, helping you ace both descriptive prompts and MCQ tests.
Exam Structure & Time Management for Science
Frequent problem-solving with the CBSE Class 9 Science Question Paper Set 20 maximizes your academic potential in Class 9 Science. Understand the precise marking scheme and structural expectations set by the CBSE. Practicing these papers in a timed setting sharpens your time management, allowing you to complete your Science test without last-minute panic.
Offline Accessibility and Complete Revision
Carrying the CBSE Class 9 Science Question Paper Set 20 in portable formats facilitates seamless offline learning. These practice papers serve as trusted tools for working through numerical problems and learning answer frameworks. Review your answers using our teacher-prepared keys, and extend your study using our Class 9 Science sample papers and online MCQ practice modules.
FAQs
The CBSE Class 9 Science Question Paper Set 20 is available for download on StudiesToday.com. It includes complete set with all sections so that Class 9 students can practice with the exact same paper that came in the CBSE exams.
Yes, the solutions for CBSE Class 9 Science Question Paper Set 20 are prepared by subject matter experts as per official marking scheme. Class 9 students will understand the structure of answers and 'step-marks' methodology Science.
Solving previous year papers like CBSE Class 9 Science Question Paper Set 20 is important to understand repeat themes and question difficulty levels of Science. It helps Class 9 students to test their time management skills too.
Yes, where applicable, CBSE Class 9 Science Question Paper Set 20 is available in both English and Hindi mediums. All students from Class 9 can access Science study material in their preferred language.
No, all previous year question papers on StudiesToday, including CBSE Class 9 Science Question Paper Set 20, are provided free of charge in mobile-friendly PDF.