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Important Instructions for the

School Principal

(Not to be printed with the question paper)

1) This question paper is strictly meant for use in school based SA-I, September-2012 only.

This question paper is not to be used for any other purpose except mentioned above under

any circumstances.

2) The intellectual material contained in the question paper is the exclusive property of Central Board of Secondary Education and no one including the user school is allowed to

publish, print or convey (by any means) to any person not authorised by the board in this

regard.

3) The School Principal is responsible for the safe custody of the question paper or any other material sent by the Central Board of Secondary Education in connection with school

based SA-I, September-2012, in any form including the print-outs, compact-disc or any

other electronic form.

4) Any violation of the terms and conditions mentioned above may result in the action criminal or civil under the applicable laws/byelaws against the offenders/defaulters.

Note: Please ensure that these instructions are not printed with the question

paper being administered to the examinees.

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I, 2012

SUMMATIVE ASSESSMENT I, 2012

/ SCIENCE

IX / Class IX

3 90

Time allowed : 3 hours Maximum Marks : 90

(i)

(ii)

(iii)

(iv)

(v) 1 3

(vi) 4 7 30

(vii) 8 19 50

(viii) 20 24 70

(ix) 25 42

General Instructions :

(i) The question paper comprises of two Sections, A and B. You are to attempt both the

sections.

(ii) All questions are compulsory.

(iii) There is no overall choice. However, internal choice has been provided in all the five

questions of five marks category. Only one option in such questions is to be attempted.

(iv) All questions of Section-A and all questions of Section-B are to be attempted separately.

(v) Question numbers 1 to 3 in Section-A are one mark questions. These are to be answered in

one word or in one sentence.

(vi) Question numbers 4 to 7 in Sections-A are two marks questions. These are to be answered

in about 30 words each.

(vii) Question numbers 8 to 19 in Section-A are three marks questions. These are to be answered

in about 50 words each.

(viii) Question numbers 20 to 24 in Section-A are five marks questions. These are to be answered

in about 70 words each.

(ix) Question numbers 25 to 42 in Section-B 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.

SC1-050

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SECTION-A

1.

Give two examples of practical applications which are based on highly compressibility of gases.

1

2.

State the reason for calling cell membrane as selectively permeable membrane.

1

3.

Name the property by virtue of which a body resists the change in its state of rest or of motion . Name the physical quantity that measures it.

1

4.

Explain why heat energy is needed to melt a solid. Define latent heat of fusion.

2

5. 5.6 mL 75 mL

A solution contains 5.6 mL of alcohol mixed with 75mL of water. Calculate the concentration of this solution.

2

6.

Name the four types of elements which constitutes phloem.

2

7.

List two differences between mass and weight.

2

8. (a)

(b)

(a) Giving an example of each write one point of difference between macro nutrient and micronutrient.

(b) How are the physiological processes affected when the plants are deficient of these nutrients.

3

9.

Differentiate between mixed cropping and crop rotation ? Give one reason for the need to remove weed from the cultivated fields during early stages of crop growth.

3

10. (a)

(b)

(a) If the back of your hand is moistened with alcohol you will find some

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changes. List two observations you will make and mention the factors responsible for each observation.

(b) Water drops are formed on the outer surface of a glass containing ice-cold water.

11.

(a)

(b)

(c)

You are provided with soda water, milk and muddy water. How can you differentiate between them in terms of : (a) Homogeneity (b) Filtration (c) Tyndall effect

3

12. (a)

(i)

(ii)

(b)

(a) Draw a neat diagram of an animal cell and label the following parts. (i) Nuclear envelope (ii) Mitochondria (b) State one function of Endoplasmic Reticulum.

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13. (a)

(b)

(a) Epidermal cells on the aerial parts of the plant secrete a waxy layer on their outer surface. Mention its two roles in the plants.

(b) List two functions of xylem

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14.

Write the difference between striated muscles, smooth muscles and cardiac muscles on the basis of their shape and number of nuclei.

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15. 30 m/s 40 m/s

A train covers half of its journey with a speed of 30 m/s and the other half with a speed of 40 m/s. Calculate the average speed of the train during the whole journey.

3

16.

State Newtons Second Law of Motion. Derive a relation between force acting on

a body and the acceleration produced.

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17. 5 g 120 m/s 0.015

(a)

(b)

A bullet of mass 5 g travelling at a speed of 120 m/s penetrates deeply into a fixed target and is brought to rest in 0.015 Calculate : (a) the distance of penetration in the target. (b) the average force exerted on the bullet by the target.

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18. 21030 kg 61024 kg

1.5108 km

The mass of sun is 21030 kg and mass of earth is 61024 kg. If the distance

between the centers of sun and earth is 1.5 108 km, calculate the force of gravitation between them.

3

19. (a)

(b)

(c) 10 kg

1/6

(a) Define free fall and acceleration due to gravity.

(b) What do we call the gravitational force between the earth and an object.

(c) Mass of an object on earth is 10 kg what will be its mass on the moon.

Compare the weight of body on the earth to that on moon. (Given that

acceleration it gravity on earth is six times of that on moon).

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20.

Explain five factors for which variety improvement of crops is done.

OR

(a)

(b)

(a) List three ways by which insect pests attack the plants.

(b) List three pathogens that may cause diseases in plants. How are there

transmitted. Mention the method by which these can be controlled. State

the harmful effects of these methods.

5

21. (a)

(b)

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(c)

(a) What type of clothes should we wear in summer and why ? (b) Which of the two produces more severe burns boiling water or steam ?

Give reason for your answer. (c) Describe an activity to illustrate that particles of matter are continuously

moving.

OR

(a) 100 mL

(i)

(ii)

(iii)

(b)

(a) Raghav dissolved one spoonful of salt in 100 mL of water. (i) Where does the salt disappear ? (ii) Write inference that can be drawn about the nature of matter

from observation in the above activity. (iii) State two characteristics of particles of matter observed in the

above activity. (b) Describe an activity with labelled diagram to show sublimation of

ammonium chloride. 22.

(i)

(ii)

(iii)

(iv)

(b)

Priya wanted to separate mixture of dyes constituting a sample of ink. She put a drop of ink on the filter paper and place the filter paper in glass containing water. The filter paper was removed when the water moved near the top.

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(i) What would you observe on filter paper, if the ink contains three dyes in

it ? (ii) Name the technique used by her. (iii) State the principal of the technique (iv) Suggest two more applications of this technique (b) Draw a flow diagram to illustrate how we obtain different gases from

air.

OR

(a)

(b)

(c)

(d)

(a) Define the term solute and solvent. (b) While preparing a solution how will you identify that the solution is

saturated ? (c) State two ways by which a saturated solution can be made unsaturated. (d) List any two differences between metals and non-metals. What are

metalloids ? Give one example. 23. (a)

(b) r t

(c) 196 m 25 min

(a) Define uniform circular motion. Explain with the help of diagram why

is it called an accelerated motion ? Give an example of this kind of

motion.

(b) Give an expression for the speed of an athlete if he takes time t to go

around a circular track of radius r

(c) A cyclists takes five round of a circular track of diameter 196 m is 25 min.

calculate his speed.

OR

5 s 2 m/s1 5 s 10 m/s1

10 s

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(i)

(ii) 10 s

A body moves with a velocity of 2 m/s for 5s then its velocity increases to 10 m/s in the next 5 seconds. Thereafter its velocity begins to decrease at a uniform rate until it comes to rest after 10 seconds. (i) Plot a velocity time graph for the motion of the body. (ii) Use graph to find the distance covered by the body in last 10 seconds.

24. (a)

(b)

(c)

(d)

(a) State Newtons third law of motion. (b) State law of conservation of momentum. (c) Explain why is it difficult for a fireman to hold, a hose, which ejects large

amount of water at a high speed. (d) A bullet, thrown with a hand can be stopped easily, but it may kill a

person when fired from a gun, why ?

OR

(a)

(b)

(i)

(ii)

(iii)

(iv)

(i) Write an activity to distinguish between a balanced and an unbalanced force.

(ii) Explain whether the force is balanced or unbalanced in the following situations.

(a) A suitcase is dropped from a certain height. (b) A bicycle is moving in a straight line with constant velocity. (c) In the game of tug of war, the two teams apply force but the rope

doesnt move. (d) A ball rolling on the ground stops after sometime.

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/ SECTION - B

25.

(a) (b) (c) (d)

The food extract in the following test tube is :

(a) Glucose (b) Starch (c) Protein (d) Fat

1

26. 5 g 15 mL HCl

(a) (b)

(c) (d)

Radhika took 5 g of dal. She added 15 mL of water and few drops of conc. HCl. Pink colour indicated the present of : (a) Kesari dal (b) turmeric (c) metanil yellow (d) soap stone

1

27.

(a) (b)

(c) (d)

Priyal wants to find out the accurate boiling point of water. He should use : (a) tap water (b) distilled water (c) well water (d) salty water

1

28.

(a)

(b)

(c)

(d)

In the determination of melting point of ice, a student observed that : (a) temperature starts decreasing and when whole of ice has melted (b) temperature starts rising and ice also starts melting (c) temperature remains constant during melting of ice (d) temperature starts rising but ice does not start melting.

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29.

(a) B (b) C (c) A (d) A B

In the given figure, identify the place from the labelled area at which you can find only pure ammonium chloride after heating.

(a) B (b) C (c) A (d) A and B both

1

30.

(a) (b)

(c) (d)

Out of the following four mixtures, the one that appears clear and transparent when stirred well and left undisturbed for some time is : (a) white of an egg and water (b) fine sand and water (c) starch and water (d) common salt and water

1

31.

(a) (b)

(c) (d)

A student by mistake mixed iron filings and sulphur powder. He wanted to separate them from each other. He should dissolve the mixture in: (a) boiling water (b) cold water (c) carbon disulphide (d) alcohol

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32.

(a)

(b)

(c)

(d)

When dilute hydrochloric acid is added to zinc granules we observe that : (a) a precipitate is formed

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(b) the reaction mixture becomes transparent solution (c) no reaction takes place (d) gas bubbles start coming from the surface of zinc granules

33.

(a) (b)

(c) (d)

A mixture of iron filings and sulphur is heated, the colour of the mixture will

change from :

(a) black to yellow (b) yellow to black

(c) black to brown (d) brown to yellow

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34.

(a)

(b)

(c)

(d)

Sodium sulphate and barium chloride solutions are mixed in a test tube. The

observation made is :

(a) greenish yellow gas is evolved

(b) a colourless gas is evolved

(c) a yellow precipitate is formed

(d) a white precipitate is formed

1

35.

(a) B (b) C (c) A (d) D

Four students were asked to draw the human check cell. Their diagrams are

given below. Which one is correct ?

(a) B (b) C (c) A (d) D

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36.

(i)

(ii)

(iii) 2 - 3

(iv)

(a) (i) - (ii) - (iii) - (iv) (b) (iv) - (i) - (iii) - (ii)

(c) (iv) - (i) - (ii) - (iii) (d) (i) - (iii) - (ii) - (iv)

Given below are four operations for preparing a temporary mount of human cheek cells :

(i) Taking scraping from inner side of cheek and spreading it on a clean slide.

(ii) Putting a drop of glycerin on the materials (iii) Adding 2 or 3 drops of methylene blue (iv) Rinsing the mouth with fresh water and disinfectant solution. The correct sequence of these operations is : (a) (i) - (ii) - (iii) - (iv) (b) (iv) - (i) - (iii) - (ii) (c) (iv) - (i) - (ii) - (iii) (d) (i) - (iii) - (ii) - (iv)

1

37.

(a)

(b)

(c)

(d)

While preparing temporary mount of human check cell, glycerin, is added to the material on slide to : (a) avoid entry of air bubbles (b) stain it (c) make the material glory (d) avoid drying of the material

1

38.

(a) (b)

(c) (d)

Rajan was shown a slide. He found the cells were thin walled, polygonal

having single nucleus. This could be a slide of :

(a) sclerenchyma (b) Nerve cell

(c) Parenchyma (d) Striped muscle

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39. X

(a) (b)

(c) (d)

In the following diagram the part labelled by X shows:

(a) Intercellular space (b) Intracellular space (c) Cytoplasm (d) Vacuole

1

40. 5 g 8 7g

(a) 20% (b) 25% (c) 40% (d) 45%5 g of raisins were placed in distilled water for 8 hrs. The weight of the soaked raisins was found to be 7 g. The correct percentage of water absored by raisin is : (a) 20% (b) 25% (c) 40% (d) 45%

1

41.

F1

F2

(a) F1 > F2 (b) F2 > F1 (c) F1 = F2

(d)

A student measured the minimum force F1 to first move a rectangular wooden block kept with largest surface area on a horizontal surface by a spring balance. He again measured the minimum force by placing the block with smallest surface area on the table to be F2. He repeated the experiment and tried to establish a relation between the two. The correct result would be : (a) F1 > F2 (b) F2 > F1 (c) F1 = F2 (d) no definite relation between the two

1

42.

(a) 0 (b) 45 (c) 60 (d) 90

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For measuring the minimum force required to pull a block placed on horizontal reface by spring balance the angle between the spring balance and block should be : (a) 0 (b) 45 (c) 60 (d) 90

- o O o -