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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.

SC1-034

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SECTION-A

1.

Why does palm of you hand feel cold when you pour some acetone on your palm ?

1

2.

Write the names of two cell organelles that contain their own genetic material ?

1

3.

Give one point of difference between balanced and unbalanced forces.

1

4.

(a)

(b)

Give reasons for the following :- (a) A gas exerts pressure on the walls of the container in which it is kept ? (b) A gas fills completely the vessel in which it is kept ?

2

5.

(i)

(ii)

State the principal of each of the following methods of separation of mixtures (i) Separation using separating funnel (ii) Centrifugation method

2

6.

Write any two characteristic features of parenchyma tissue..

2

7. 9.8 ms2

(a) 2 s

(b) m

M d g G

Acceleration due to gravity is 9.8m/s2

(a) What will be the velocity of a freely falling body 2s. after the fall ?

(b) A body of mass m is lying on the surface of the earth (Mass of the

earthM and radius – d). Derive an expression for the relation between

„g‟ and „G‟

2

8.

Mention any two uses of manure. What is vermin- compost ?.

3

9. 3

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A farmer found that xanthium and parthenium are also growing along with paddy in the field. What are such plants called ? How the presence of these plants affect the crop field ? List any 4 methods for controlling them.

10.

State all the factors that affect the rate of evaporation of water and also state

how there factors affect it.

3

11.

A

B

C

Name the type of colloids in each of the following, giving an example of each.

Dispersed Phase Dispersing Medium

A Liquid Gas

B Liquid Liquid

C Liquid solids

3

12.

Describe the role played by the Lysosomes in a cell. Why these are termed as

suicidal bags ? How do they perform their function.

3

13.

(a)

(b)

(c)

Give the location and functions of the following tissues :

(a) Cartilage

(b) Areolar Tissue

(c) Adipose tissue

3

14.

(i)

(ii)

Show the diagrammatic representation of the location of intercalary meristem

and lateral meristem in plant. Name the meristem which is responsible for :

(i) the increase of girth of root.

(ii) increase of the length of roots ?

3

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15.

(s) 0 2 4 6 8 10 12

(m) 0 2 4 4 4 6 4

4 s

Using following data, draw displacement time graph for a moving object. Time (s) 0 2 4 6 8 10 12 Displacement (m) 0 2 4 4 4 6 4 Using this graph find average velocity of the body for first four seconds.

3

16. 10 s

300 m 1500 kg

A car starts from rest and moves down in a high hill with a constant acceleration. It travels a distance of 300 m in 10s. Find its acceleration. Find the force acting on it if its mass is 1500 kg.

3

17.

(i)

(ii)

(iii)

(i) Explain with reason when a car take a sharp turn, we are pushed to one

side.

(ii) (ii) While riding a bicycle you need to continuously apply a force in order to

make it move with constant speed.

(iii) (iii) A ball left rolling on floor comes to rest on its own after moving by some

distance.

3

18. 3 s

(1)

(2)

A ball is thrown vertically upwards and reaches a maximum height in 3 seconds. Find (1) the velocity with which it was thrown upwards (2) the maximum height attained by the ball.

3

19.

300 kg

What is meant by acceleration due to gravity ? Explain the variation in its value when an object moves from poles to the equator of earth. What effect will this variation have on the weight of a mass of 300 kg on poles and at equator ?

3

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20.

Define animal husbandry. List any three basic aspects covered by animal

husbandry.

Mention any two basic requirements of Shelter facilities for animals so that their

health is not affected ?

Give two examples of Exotic breeds of cows which are selected for long lactation

period.

OR

Why is irrigation important for crops ? Describe in brief any four different

kinds of irrigation systems adopted to supply water to agricultural lands.

5

21.

(a) (b)

(c) (d) (e)

Compare in tabular form, the properties of solids, liquids and gases with respect to : (a) shape (b) volume (c) compressibility (d) diffusion (e) fluidity.

OR

(a)

(b) (i)

(ii)

(a) You want to wear your favourite shirt to a party, but the problem is that it is still wet after a wash. Mention three steps with reason that you would take to dry it faster ?

(b) It is a hot summer day, Priyanshi and Ali are wearing cotton and nylon clothes respectively. Who do you think would be more comfortable and why ?

(ii) During rainy season we feel sticky and incomfortable even under the fan why ?

5

22. (a) 293 K 100 g 36 g NaCl

(b)

5

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(c)

(a) To make a saturated solution, 36g of NaCl is dissolved in 100g of water at 293 K. Find its concentration at this temperature.

(b) What is the effect of temperature on the solubility of a solid in liquid ? Illustrate by an example.

(c) Draw a diagram of separating funnel and mention its two applications.

OR

(a) (b)

(c) (d) (e)

Based on the following characteristics distinguish in tabular form the behavior of true solution, suspension and colloidal solution : (a) appearance (b) Visibility (c) filterability (d) Tyndall effect (e) particle size

23. (a) „u‟ „t‟

„v‟

(b)

(c)

(a) Draw velocity – time graph for a body starting its motion with a velocity „u‟ and under uniform acceleration „a‟ it acquires a velocity „v‟ in time „t‟

(b) Using above graph, derive III equation of motion for position-velocity relation.

(c) Explain how is it possible for an object to move with a constant speed but with uniform acceleration.

OR

(a)

(b)

(c) 0.2 km 2

(a) Define circular motion. (b) Uniform circular motion is an accelerated motion‟. Justify giving reason.

Give two examples of such motion. (c) A scooterist moves along a circular track of radius 0.2 km and completes

one revolution in 2 minutes. Determine velocity of the scooterist.

5

24. (a)

(b)

(c) 1 kg 20 ms1

50 m

5

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(a) State Newton‟s Ist law of motion. Explain why is it also called law of inertia.

(b) A football and an iron ball are kept on the smooth floor of a moving bus. The breakes are suddenly applied to stop the bus.

(1) Which of the balls will start rolling first and why ?

(c) A stone of mass 1 kg is thrown with a velocity of 20 ms1across the

frozen surface of a lake and comes to rest after travelling a distance of 50 m. What is the force of friction between the stone and the ice ?

OR

10 g

(a)

(b)

(c)

The velocity time graph of a marble of mass 10 g rolling along a straight line on a long table is given below. After studying the graph answer the questions given below :

(a) What are initial and final velocities of the marble ? (b) Calculate its initial and final momentum. (c) Find acceleration of the marble and force exerted by the table on the

marble to bring it to rest ?

/ SECTION - B

25. A, B, C, D

1

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

Four watch glasses with labels A,B,C,D. respectively have common salt, sugar,

sago powder, chalk powder. On adding two drops of iodine to the content of

each watch glass, the one turning blue black will be :

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

26. HCl

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

Dal adulterated with metanil yellow was washed in water. HCl was added to the washed water, the colour of content would turn : (a) red (b) pink (c) Orange (d) Violet

1

27.

(a)

(b)

(c)

(d)

A student arranged the practical set up for determing boiling point of water. On heating he would observe that the temperature of water – (a) keeps on increasing regularly (b) keeps on increasing irregularly (c) first increases gradually then decreases (d) first increases gradually and then becomes constant.

1

28.

(a)

(b) 0C

(c)

(d) 0C

A student sets up an apparatus for determining the melting point of ice. He records the temperature after regular intervals and finds that the temperature : (a) continuously falls (b) continuously rises till the whole ice melts and then falls to 0C (c) remains constant at room temperature and starts falling when ice starts

melting. (d) falls to 0C and remains constant till the whole ice melts.

1

29.

(a)

(b)

(c)

1

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(d)

Which among the following statement is incorrect about ammonium chloride ?

(a) It is a solid a room temperature.

(b) It directly changes into vapours on heating

(c) It is soluble in water

(d) It melts at room temperature and changes into a liquid

30.

(a)

(b)

(c)

(d)

The particles of suspension - (a) Can be seen with naked eyes (b) Can not be seen with naked eyes (c) Can not be seen with a microscope (d) Do not settle down

1

31.

(a)

(b)

(c)

(d)

Which is the correct colour sequence of iron filings, sulphur and iron suphide ?

(a) Greyish–blacks, yellow, black

(b) Black, yellow , brown

(c) Brown, yellow, black

(d) Black, yellow, greyish black

1

32. HCl

(a) (b)

(c) (d)

Which one of the following we use to identify the gas evolved when dil HCl reacts with zinc metal ? (a) Blue litmus Paper (b) Red litmus Paper (c) A burning splinter (d) Lime water

1

33.

(a)

(b)

(c)

(d) H2S

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While heating iron filings and sulphur it is advised to keep your eyes away

from fumes evolving from the mixture because -:

(a) Sulphur vapour may cause irritation in eyes

(b) Vapours of iron sulphide may harm eyes

(c) Iron vapours may cause irritation in eye

(d) H2S gas cause irritation in eyes

34.

(a)

(b)

(c)

(d)

When dilute sulphuric acid is added to granulated zinc placed in a test tube, the observation made is. (a) the surface of the metal turns shining (b) the reaction mixture turn milky (c) the odour of sulphur dioxide is felt (d) a colourless and odourless gas evolves with bubbles.

1

35.

(a)

(b)

(c)

(d)

To observe cells in an onion peel we, must prepare the slide by mounting on it. (a) Crushed pulp of onion (b) Dry scale leaf (c) green leaf of onion (d) thin membrane on outer surface of onion

1

36.

(a) (b)

(c) (d)

Radha has prepared a temporary mount of onion peel. She has used a stain to

make it more clear. The stain used by her is :

(a) methylene blue. (b) safranin .

(c) acetocarmine . (d) eosine

1

37.

(a)

(b)

(c)

1

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(d)

In human check cells, nucleus is generally located :

(a) near the plasma membrane

(b) on one side

(c) in the centre

(d) any where

38.

(a) (b)

(c) (d)

A permanent plant tissue consisting of thin walled living cell is (a) Parenchyma (b) Collenchyma (c) Sacelerenchyma (d) Xylem

1

39.

(a) (b)

(c) (d)

The slide under microscope shows alternate light and dark bands and many nuclei. It may be a slide of. (a) Nerve cells (b) Striated Muscle (c) Sclerenchyma (d) Phloem fibres

1

40. 2.0 g 3.5 g

(a) 20% (b) 10% (c) 75% (d) 40% A student recorded the mass of dry raisins as 2.0 g and the mass of raisins after soaking as 3.5 g. The percentage of water absorbed by raisins is - (a) 20% (b) 10% (c) 75% (d) 40%

1

41.

F1 F

2

(a) F1 > F2 (b) F1 < F2

(c) F1 F2 (d)

While performing the experiment of “To establish relationship between weight of a rectangular wooden block lying on a horizontal surface and minimum force required to just move it using spring balance”. A student measured this minimum force by placing the block on a polished surface and oiled surface successively as F

1 and F

2 respectively. He repeated the experiment a number of

times and tried F1 to establish relation between F

1 and F

2 as .

(a) F1 > F2 (b) F1 < F2

(c) F1 F2 (d) No definite relationship.

1

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42. 100 g

50 gwt

(a) 0 – 100 gwt 5 gwt

(b) 0-500 gwt 5 gwt

(c) 0-100 gwt 1 gwt

(d) 0-500 gwt 1 gwt

In the above experiment, A student is provided with horizontal rectangular block of mass 100g and told that the minimum force required to just move it will be nearly 50 gwt. If he is having following spring balances which one he should choose- (a) Range 0 – 100gwt, Least Count 5gwt (b) Range 0-500gwt, Least Count 5 gwt (c) Range 0-100gwt, Least Count 1gwt (d) Range 0-500gwt, Least count 1 gwt

1

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