KENDRIYA VIDYALAYA SANGATHAN, HYDERABAD REGION · · 2017-09-25KENDRIYA VIDYALAYA SANGATHAN,...

Prepared by: M. S. KumarSwamy, TGT(Maths) Page - 1 -

KENDRIYA VIDYALAYA SANGATHAN, HYDERABAD REGION SAMPLE PAPER 01 FOR HALF YEARLY EXAM (2017-18)

SUBJECT: SCIENCE (086)

BLUE PRINT FOR HALF YEARLY EXAM: CLASS IX

Chapter VSA (1 mark)

SA – I (2 marks)

SA – II (3 marks)

LA (5 marks)

Practical Based

Questions Total

Matter in our Surroundings 1(1) -- 6(2) 5(1) 2(1) 14(5)

Is matter around us pure -- -- 6(2) 5(1) 2(1) 13(4)

The Fundamental Unit of life -- 2(1) 3(1) 5(1) -- 10(2)

Tissue -- -- 3(1) 5(1) 2(1) 10(3)

Improvement in food resources -- 2(1) 3(1) -- 2(1) 7(3)

Motion 1(1) -- 3(1) 5(1) -- 9(3)

Force and law of motion -- -- 3(1) 5(1) 2(1) 10(3)

Gravitation -- 2(1) 3(1) -- 2(1) 7(3)

Total 2(2) 6(3) 30(10) 30(6) 12(6) 80(27)

MARKING SCHEME FOR HALF YEARLY EXAM

SECTION MARKS NO. OF QUESTIONS TOTAL

VSA 1 2 02

SA – I 2 3 06

SA – II 3 10 30

LA 5 6 30

Pract Based Quest. 2 6 12

GRAND TOTAL 80



SUBJECT: SCIENCE MAX. MARKS : 80 CLASS : IX DURATION : 3 HRS General Instructions: 1. All questions are compulsory. 2. The question paper comprises of two Sections, A and B. You are to attempt both the sections. 3. All questions of Section-A and Section-B are to be attempted separately. 4. Question number 1 to 2 in Section-A are one mark question. These are to be answered in one word or in

one sentence. 5. Question numbers 3 to 5 in Section-A are two marks questions. These are to be answered in about 30

words each. 6. Question numbers 6 to 15 in Section-A are three marks questions. These are to be answered in about 50

words each. 7. Question numbers 16 to 21 in Section-A are five marks questions. These are to be answered in about 70

words each. 8. Question numbers 22 to 27 in Section-B are questions based on practical skills and are two marks

questions.

SECTION – A

1. Name the property of gases due to which it is possible to fill CNG in cylinders for using as fuel in cars.

2. What is the numerical ratio of average velocity to average speed of an object moving along a

straight line path? 3. What is meant by free fall? A ball is dropped from the roof of a building. It takes 10 seconds to

reach the ground. Find the height of the building. (g = 9.8 m/s2) 4. Define biotic factors. Name a few biotic factors which damage the food material during storage. 5. (a) What are concentrates in animal feed ? (b) Name two internal parasites that cause diseases in animals. 6. Differentiate between evaporation and boiling. Give any three differences. 7. (a) Why does the water kept in an earthen pot become cool in summer? (b) Draw a well labelled

diagram showing sublimation of camphor. (c) Convert: 340 K to degree Celsius.

8. A solution of alcohol in water has been prepared by mixing 150 ml of alcohol with 600 ml of water. Calculate the volume. Percentage of the solution.

9. What is chromatography? State its principle. Write one advantage of chromatography over other techniques.

10. Define the following terms: Protoplasm, cytoplasm, nucleoplasm 11. Name the following and give one characteristic of each.

(a) Living tissue that provides mechanical support in plants. (b) Highly specialised cells for being stimulated and then transmitting the stimulus very rapidly within the body of animals. (c) Animal tissue with elongated cells and contractile proteins responsible for movement.


12. The velocity-time graph of a body is shown below: (a) State the kind of motion represented by OA and AB. (b) Find the velocity of the body after 10 s and after 40 s. (c) What is the negative acceleration of the body? (d) Find the distance travelled between 10th and 30th second.

13. (a) State the law of conservation of momentum.

(b) A body of mass 2 kg, initially moving with a velocity of 10 m/s, collides with another body of mass 5 kg at rest. After collision velocity of first body becomes 1 m/s. Find the velocity of second body.

14. What is meant by buoyancy? Why does an object float or sink when placed on the surface of a

liquid? 15. Rahul and Rachna were practicing floriculture in their farm. They sold the flowers to florists in

India. They felt that if they start bee-keeping too, their income will increase. They obtained more information from the local officer. (i) What is pasturage and how is it related to quality of honey? (ii) Name a bee variety which is commonly used for commercial honey production. (iii) Why society would appreciate Rahul and Rachna?

16. (a) What is meant by the word ‘Latent’ in latent heat. (b) Explain with example of water: (i) latent heat of fusion, and (ii) latent heat of vaporization 17. Identify the physical and chemical changes from the following:

(a) Heating the mixture of iron and sulphur. (b) Ripening of fruits (c) Dissolution of salt in water (d) Rusting of iron-chair. (e) Making egg omelets.

18. What are neurons? Where are they found in the body? What functions do they perform in the

body of an organism? 19. Draw velocity time graph for a body that has initial velocity ‘u’ and is moving with uniform

acceleration ‘a’. Use it to derive v = u + at; s = ut + at2, and v2 = u2 + 2as 20. (a) State Newton’s second law of motion and show that the first law of motion can be

mathematically stated from the mathematical expression for the second law of motion. (b) A stone dropped from a window reaches the ground in 0.5 seconds (given g = 10 ms–2). (i) Calculate the speed just before it hits the ground. (ii) What is the average speed at t = 0.5 s? (iii) Calculate the height of window from the ground.


21. Given below is a diagrammatic sketch of a certain generalised cell. (a) Name the parts numbered as 1 to 8. (b) Is it a plant cell or an animal cell? Give two reasons in support of your answer. (c) Give the functions of parts marked as 1, 6 and 8.

SECTION – B 22. Out of honey or ink which will diffuse faster and why? 23. You are provided with a solution of salt in water in one jar and mixture of salt and sand in other.

Can you state one property in which they resemble and differ from one another. 24. Preetha was observing live cells of onion in the biology laboratory and she observed cell wall,

cytoplasm and nucleus clearly. Suddenly her friend who was doing chemistry experiment spilled a few drops of salt water on the slide. After sometime Preetha observed the slide and found some changes. (a) What would have been the change in the live cells of onion peel after adding salt water? (b) Name the type of process.

25. Given is the diagram showing longitudinal section of collenchyma tissue. Label the parts ‘M’,

‘N’, ‘O’ and ‘P’ in the given diagram.


26. In the below experimental set-up, a student gives the card a sharp and fast horizontal flick with a finger. (i) What will happen to the coin? (ii) State reason for your answer.

27. Gravitational force is known to exist between all bodies in this universe. Due to existence of

gravitational force between the earth and the moon, moon should experience a pull towards the earth and vice versa. Do you expect the orbit of the moon to change due to this force of attraction? Give reason in support of your answer.






SA – I (2 marks)

SA – II (3 marks)

LA (5 marks)

Practical Based

Questions Total

Matter in our Surroundings -- -- 6(2) 5(1) 2(1) 13(4)

Is matter around us pure 1(1) -- 6(2) 5(1) 2(1) 14(5)


Tissue -- -- 3(1) 5(1) 2(1) 10(3)


Motion -- -- 3(1) 5(1) 2(1) 10(3)

Force and law of motion 1(1) -- 3(1) 5(1) -- 9(3)

Gravitation -- 2(1) 3(1) -- 2(1) 7(3)

Total 2(2) 6(3) 30(10) 30(6) 12(6) 80(27)



VSA 1 2 02

SA – I 2 3 06

SA – II 3 10 30

LA 5 6 30


GRAND TOTAL 80








questions.

SECTION – A

1. How can you convert a saturated solution into an unsaturated saturation? 2. State the name and type of force which is responsible for the formation of tides in the sea. 3. What is DNA? Explain its functions. 4. Derive the formula for the gravitational force using the factors on which it depends. 5. Differentiate between kharif and rabi crops. Mention the months in which these are sown. Give

one example of each. 6. Define the following terms. (a) Latent heat of fusion. (b) Melting point. (c) Fusion. 7. (a) “Evaporation causes cooling”. Explain the reason for this effect.

(b) Explain two examples from our daily life where we feel the effect of cooling due to evaporation.

8. (a) List any three characteristic of colloid. (b) Name the two components of a colloid. (c) Identify colloid from the following mixtures: Muddy water, sugar in water, ink, blood, soda water, foam

9. Calculate the amount of water required to prepare 500 g of 2.5% solution of sugar. 10. Define the following terms: Protoplasm, cytoplasm, nucleoplasm 11. (a) State two important functions of areolar tissue.

(b) Why are skeletal muscles known as striated muscles?

12. State Archimedes’ principle. Explain the reason that a cork floats in water whereas an iron nail sinks.

13. Explain the following briefly: (a) A cricket ball causes much severe injury than a tennis ball on hitting a spectator. (b) An applied unbalanced force causes a change in momentum. (c) A greater force is required to impart greater velocity to an object.


14. The graph given below shows the position of a body at different times. Calculate the speed of the body as it moves from: (i) A to B (ii) B to C (iii) C to D

15. What are weeds? Give two examples. Mention any two methods of preventing the growth of

weeds.

16. Given below is a diagrammatic sketch of electron microscopic view of an animal cell : (a) Label the parts indicated by lines as 1 to 10. (b) Give two reasons to support that it is an animal cell (c) How many mitochondria are shown in the diagram?

17. (a) What do you mean by a meristematic tissue? (b) Mention different types of meristematic tissues present in plants. Draw a diagram showing the three types of meristematic tissues.

18. (a) Define matter. Name the state of matter in which the forces between the constituent particles are: (i) strongest. (ii) weakest. (b) Give reasons for the following: (i) A liquid generally flows easily. (ii) Ice at 0°C appears colder to the mouth than water at 0°C. Why? (iii) Doctors advise to put strips of wet cloth on the forehead of a person having high temperature.

19. A student was given a mixture of iron filing and sulphur? He was told to heat it and observe the compound. (a) What is colour of the compound formed? (b) Write the effect of magnet on it. (c) Write the action of carbon disulphide on it. (d) Describe the effect of adding dilute hydrochloric acid to it. Identify the gas and write its two properties.


20. (a) Draw a velocity-time graph for an object in uniform motion. Show that the slope of velocity time-graph gives acceleration of the body. (b) An aeroplane starts from rest with an acceleration of 3 ms–2 and takes a run for 35 s before taking off. What is the minimum length of runway and with what velocity the plane took off?

21. (i) Define momentum. State its SI unit.

(ii) An object of mass 50 kg is accelerated uniformly from a velocity of 4 m/s to 8 m/s in 8 s. Calculate the initial and final momentum of the object. Also find the magnitude of the force exerted on the object.

SECTION – B

22. Identify the animal tissues from the given descriptions and also mention their location in the

human body. Tissue ‘A’ - cells are filled with fat globules and the tissue acts as an insulator. Tissue ‘B’ – has cylindrical branched cells and the tissue shows rhythmic contraction and relaxation thought life.

23. (a) What can be depicted from the graph regarding the motion of the object?

(b) Find the value of acceleration from the graph.

24. (i) Arrange the following substances in increasing order of force of attraction between the

particles. (a) water (b) hydrogen (c) sand (ii) Why does the temperature remain constant at the melting point?

25. On dissolving chalk powder in water, a suspension is obtained. Give any four reasons to

support the fact that mixture so obtained is a suspension only. 26. If the distance between two objects is increased four times, then by how many times will the

mass of one of the objects be changed to maintain the same gravitational force? 27. India is a country with three fourth of the population engaged in agriculture. Even though

financial conditions of some farmers do allow them to take higher level farming practices and improved agriculture technology, yet they are hesitant to use of HYV seeds with traits such as resistance to diseases and pests, high quality that would finally result in higher yield. The Government’s Kisan channel solved all their apprehensions. (i) What is meant by genetically modified crops? (ii) What are the desired agronomic characters for fodder and cereal crops?






SA – I (2 marks)

SA – II (3 marks)

LA (5 marks)

Practical Based

Questions Total

Matter in our Surroundings 1(1) -- 9(3) -- 4(2) 14(6)

Is matter around us pure -- -- 3(1) 10(2) -- 13(3)


Tissue -- -- 3(1) 5(1) 2(1) 10(3)


Motion -- -- 3(1) 5(1) 2(1) 10(3)

Force and law of motion 1(1) 2(1) 3(1) -- 2(1) 8(4)

Gravitation -- -- 3(1) 5(1) -- 8(2)

Total 2(2) 6(3) 30(10) 30(6) 12(6) 80(27)



VSA 1 2 02

SA – I 2 3 06

SA – II 3 10 30

LA 5 6 30


GRAND TOTAL 80








questions.

SECTION – A

1. Give reasons to explain why it takes longer to dry wet clothes in humid weather? 2. Name the force which is responsible for change in position or state of an object. 3. A cricket player lowers his hands slightly while catching a ball. Explain it in the light of

Newton’s second law of motion. 4. What is mixed cropping? How does it help a farmer? 5. (a) Define matter and write its three states.

(b) Explain how these states of matter arise due to variation in the characteristics of the particles.

6. (a) Wax is heated in a china dish. How will the following change during heating– (i) kinetic

energy of particle (ii) inter particle distance (b) Melting points of three substances A, B, C are 52°C, 175°C and 80°C. Arrange them in the decreasing order of the interparticle force of attraction in each of them. Give reason for your answer.

7. What determines the state of a substance? Suggest a method to liquefy gases. Water droplets

are observed on the outer surface of a glass tumbler containing ice cold water. Give reason. 8. Define solubility. How does solubility of a solid in water change with temperature? 9. What does DNA molecule contain? Name the functional segment of DNA. In which form is

the DNA present in a cell when the cell is not dividing ? 10. Name the kinds of muscles found in your limbs and lungs. How do they differ from each other

structurally and functionally? 11. (a) Define average speed.

(b) A bus travels a distance of 120 km with a speed of 40 km/h and returns with a speed of 30 km/h. Calculate the average speed for the entire journey.


12. (a) State the law of conservation of momentum. (b) A body of mass 2 kg, initially moving with a velocity of 10 m/s, collides with another body of mass 5 kg at rest. After collision velocity of first body becomes 1 m/s. Find the velocity of second body.

13. A box has dimensions 15 cm × 20 cm × 25 cm. Calculate pressure exerted by box if it is rested

on a surface at (a) 15 cm × 20 cm face (b) 20 cm × 25 cm face (c) 15 cm × 25 cm face, given mass of box = 20 kg. Arrange the pressure in ascending order of their magnitude.

14. Define animal husbandry. Why live stock production needs to be improved? 15. Reena used to take water from the fridge; she got sore throat, cough and cold. Seema, her

friend suggested her to take water from earthen pots, now Reena is feeling far better. (a) What are the values shown by Seema? (b) How do the earthen pots keep the water cool? (c) Why we find wetness on the outer surface of the pot.

16. (a) List any four properties of a colloid and mention any two properties in which colloids

differ from suspension. (b) State what is Tyndall effect? Which of the following solutions will show Tyndall effect? Starch solution, sodium chloride solution, Tincture iodine, air.

17. (a) How much water should be added to 15 g of salt to obtain 15% salt solution?

(b) What is the main difference between aqueous solution and non-aqueous solution? (c) Why does solution of sodium chloride not show Tyndall effect where as the mixture of water and milk shows?

18. Describe the structure of nucleus. 19. (a) Explain the formation of complex permanent tissue in plants. Mention two types of

complex tissues and write their functions. (b) How simple permanent tissues are different from complex permanent tissues?

20. The graph given alongside shows how the speed of a car changes with time.

(i) What is the initial speed of the car? (ii) What is the maximum speed attained by the car? (iii) Which part of the graph shows zero acceleration? (iv) Which part of the graph shows varying retardation? (v) Find the distance travelled in first 8 hours.

21. State universal law of gravitation. Explain its significance. Mass of an object is 20 kg. Find its

weight on earth and on moon.


SECTION – B 22. Identify and explain the factor responsible for changed rate of evaporation in the following

situations: (a) While putting clothes for drying, we spread them out. (b) Water coolers are not effective on a rainy day.

23. A brine solution of 5% and 12% are kept in a container separated by a semi-permeable

membrane. What will you observe after few hours? 24. (a) Label sieve tube and sieve plate in the diagram of a phloem tissue. (b) Differentiate

between the function of Xylem and Phloem. 25. Find the displacement of a body whose velocity time graph is shown below :

26. Take a test tube of good quality glass material and put a small amount of water in it. Place a

stop cork at the mouth of it. Now suspend the test tube horizontally by two strings or wires as shown in the figure. Heat the test tube with a burner until water vaporises and the cork blows out. Write any two of your observations.

27. Your father bought few fruits from the market and asked everybody to wash it properly before

eating. Your sister was in a hurry and hence she ate an apple without washing it. (i) Why did your father ask to wash the fruits before eating? (ii) How will you know that pesticide residues are available on a fruit or vegetable?

KENDRIYA VIDYALAYA SANGATHAN, HYDERABAD REGION · · 2017-09-25KENDRIYA VIDYALAYA SANGATHAN,...

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