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Class 9 science sample paper
Here class 9 science sample paper is prepared for helping the students of the CBSE 9 class. The sample paper is set up by a team of experts. Future study point has been published it with the purpose that our reader student could be benefitted by getting an idea regarding the sort of questions posed in 9 class science sample paper in CBSE board exams. All the CBSE students can get their benefits irrespective of the schools they are studying since questions on sample paper are prepared as per the CBSE norms.
NCERT Solutions of Class 9 Science : Chapter 1 to Chapter 15
Study of CBSE Class IX science sample papers will boost your preparation of the science question paper in CBSE Board half-yearly and annual exam, Studying sample papers help you in getting magnificent marks as well as lift your logical skills. CBSE IX class science sample paper will upgrade the dimension of your way to deal with the subject.
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Class 9 Science Question Paper CBSE Board
Science Sample Paper for class IX SA-II
SUBJECT: SCIENCE MAX. MARKS:90
CLASS: IX DURATION: 3 HRS
General Instructions:
- All questions are compulsory
- The question paper comprises of two sections, A and B. You are to attempt both the sections.
- All questions of section-A and Sections, A and Section-B are to be attempted separately.
- Question numbers 1 to 3 in Section-A are one mark questions. These are to be answered in one word or in one sentence.
- Question numbers 4 & 5 in section-A are two marks questions. These are to be answered in about 30 words each.
- Question numbers 6 to 16 in Section-A are three marks questions. These are to be answered in about 50 words each.
- Question numbers 17 to 21 in Section-A are five marks questions. These are to be answered in about 70 words each.
- Section B has 3 QTBA questions. Question number 22 is two marks. Question number 23 is three marks and question number 24 is five marks question.
- Question numbers 25 to 33 in Section-C are multiple-choice questions based on practical skills. Each question is a one mark question. You are to select one most appropriate response out of the four provided to you.
- Question numbers 34 to 36 in section-C are question-based on practical skills and are two marks questions.
SECTION – A
Q1.state the postulate of Dalton’s atomic theory which indicates the law of constant proportions.
Q2.What was Bohr’s postulate on revolution of electrons in the orbits of atom?
Q3. Name any two groups of microorganisms from which antibiotics can be extracted.
Q4. Define relative density. What is the density of silver given that its relative density is 10.3 ?
Q5. A person hears an echo from the top of a tower. 2.2 secons after the sound is produced. How far away is the tower from the person? Speed of the sound in air is 332 m/s.
Q6. If number of electrons in an atom is 8 and number of protons is also 8,then (i) What is the atomic number of the atom? and (ii) What is the charge on the atom?
Q7.State three features of the nuclear model of an atom put forward by Rutherford.
Q8.A compound XH is formed by the combination of an element ‘X’ with hydrogen. Find the valency of element ‘X’. State the formula of the compounds formed by the combination of:
(a) X with nitrogen
(b) X with oxygen
Q9. How is the criteria for deciding division in plant kingdom different from the criteria for deciding the subgroups among animals?
Q10. What is the role of the immune system? when a disease-causing microbe enters the healthy human body?
Q11. Given below are few situations:
(i) Geeta of Class IX was having cold. She sits with Sarika who also develops the diseases.
(ii) Animesh of Class IX shifted to a new residence, with his family, where water purification system has not been installed yet.Flie develops cholera and dysentery.
(iii) Associates these situations with their mode of transmissions and assign an appropriate category to them.
Q12.(a) Name the type of energy possessed by a moving object. Write its SI unit.
(b) Derive the expression for this energy for an object moving with velocity v and having mass m.
Q13.(a) If atmospheric pressure is Pa, then how much force does the air in a room exert on the inside of a window pane which is 50 cm × 100 cm ?
(b) Mention any two factors affecting the buoyant force.
Q14.What is ‘Ultrasound’ ? Explain how defects in a metal block can be detected using ultrasound.
Q15 . (a) A house has a 100 W lamp lighted for 2 hours, two 60 W lamps lighted for 4 hours and an electric fan of 50 W working for 8 hours a day. Calculate the electric units consumed each day.
(b) What energy transformation takes place in :
(i) Dry cell (ii) Electric fan
Q16. Ritwick’s family received a heavy electricity bill and decided not to pay it. His friend Sujoy explained them the importance of paying all bills on time and suggested some methods to reduce the units consumed in future.
(i) Write the commercial unit of Electrical energy?
(ii)What is its relation with the SI unit of energy?
(iii) What quality of Sujoy do you observe from his suggestions?
(iv) List any two ways you practice at home to save electricity.
Q17. (a) Write down the chemical formulae of the following compounds:
(i) Magnesium nitride (ii) Calcium nitrate (iii) Sodium nitrate
(b) Find the number of atoms present in:
molecule.
ion.
Q18.Give reasons:
(a) Animals of phylum Platyhelminthes are called flatworms.
(b) Bryophytes are called amphibians of the plant kingdom.
(c) Fungi are called saprophytes.
(d) Bacteria and tapeworms are very different in their body design.
(e) Plants like Pinus and Deodar are called gymnosperms.
Q19.What is a disease? How do we know that a person is diseased? What can be the various causes for a person getting the disease?
Q20.(a)Name the three bones in our middle ear, which help in applications of the vibrations of sound.
(b)Give the audible range of human ear.
(c)Name that part of the human ear which helps in converting pressure variations into electric signals. How the brain interprets them as sound?
Q21.(a)Name two forms of mechanical energy.
(b)Calculate the work required to be done to stop a car of 1500kg moving at a speed of 54km/h.
(c)A body mass of 1.5 kg is thrown vertically upwards with an initial velocity of 30m/s. What will be its potential energy at the end of 3s?(g=10m/square )
SECTION—B
Q22. Name a chemical that is frequently used in plastic bottles. How it is harmful to human beings?
Q23.Arrange below-given diseases with their decreasing ratio of disease burden in comparison to environmental factors: Lower respiratory infections, cardiovascular diseases, Road traffic injuries. Give their environmental sources.
Q24.An unhealthy, polluted environment does not only have an adverse effect on the people of the present generation, but it can also put the life of subsequent generations at risk. Explain how.
SECTION—C
Q25.Bouncing back of sound into the same medium when it strikes any hard surface is:
(a)Refraction (b)Reflection
(c)Either(a)or(6) (d)Reverberation
Q26. The figure is given below shows an incident pulse P reflected from a rigid support. Which our A,B,C,D represent the reflected pulse correctly:
(a) A (b) B
(c) C (d) D
Q27.Organisms without a nucleus and cell organelles belong to
(i) Fungi
(ii) Protista
(iii) Cyano bacteria
(iv) Archae bacteria
(a) (i) and (ii)
(b) (iii) and (iv)
(c) (i) and (iv)
(d) (ii) and (iii)
Q28.The relationship between pressure and area is :
(a) It is directly proportional to the square of area
(b) It is directly proportional to area
(c) It is inversely proportional to area
(d) It is inversely proportional to square of area.
Q29. The correct lables for X and Y in the diagram below are:
(a) X: respiratory siphon Y: air floats
(b) X : respiratory siphon,Y : tracheal gills
(c) X : tracheal gills, Y : respiratory siphon
(d) X: air floats, Y : respiratory siphon
Q30. A student noted downs the following precautions for the experiment ‘ To verify the law of conservation of mass in a chemical reaction.’
(i) Weighing should be done carefully.
(ii) Flask should be corked tightly.
(iii) Solutions should not get mixed before the reaction.
(iv) Mixing of two solutions must be done quickly.
The precaution which needs to be connected is:
(a) (i) (b) (ii) (c) (iii) (d) (iv)
Q31.When a chemical reaction between aqueous silver nitrate and aqueous sodium chloride is carried out. White precipitates of silver chloride are formed. The above reaction is an example of :
(a) Displacement reaction
(b)Double displacement reaction
(c) Decomposition reaction
(d) Combination reaction
Q32.Meena and Hari observed an animal in their garden. Hari called it an insect while Meena said it was an earthworm. Choose the character from the following which confirms that it is an insect.
(a) Bilateral symmetrical body
(b) Body with jointed legs
(c) Cylindrical body
(d) Body with little segmentation
Q33. Which among the following has specialised tissue for conduction of water?
(i) Thallophyta
(ii) Bryophyta
(iii) Pteridophyta
(iv) Gymnosperms
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)
Q34. In an experiment when an object is immersed in water, what does the volume of the displaced water indicate? While taking the reading of the level of water in a measuring cylinder what should be the position of eye?
Q35. When an object is kept on a liquid, then two forces act on it. Name the two forces and their directions.
Q36. Label a, b,c, and d, given in below figure.
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| Chapter 6- Linear Inequalities | Chapter 14-Mathematical Reasoning |
| Chapter 7- Permutations and Combinations | Chapter 15- Statistics |
| Chapter 8- Binomial Theorem | Chapter 16- Probability |
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| Chapter 3-Matrices | Chapter 11 – Three Dimensional Geometry |
| Chapter 4-Determinants | Chapter 12-Linear Programming |
| Chapter 5- Continuity and Differentiability | Chapter 13-Probability |
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