summative assessment i (2011) lakdfyr ijh{kk&i ......(b) infer the characteristic features of...

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SUMMATIVE ASSESSMENT –I (2011)

Lakdfyr ijh{kk&I SCIENCE / foKku

Class – IX / & IX

Time allowed: 3 hours Maximum Marks: 90 fu/kkZfjr le; % 3 ?k.Vs vf/kdre vad % 90

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) Questions 1 to 3 in section A are one mark questions. These are to be answered in

one word or in one sentence.

(vi) Questions 4 to 7 in section A are two marks questions. These are to be answered

in about 30 words each.

(vii) Questions 8 to 19 in section A are three marks questions. These are to be

answered in about 50 words each.

(viii) Questions 20 to 24 in section A are five marks questions. These are to be

answered in about 70 words each.

(ix) Questions 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.

lkekU; funsZ”k %

(i) bl iz”u i= dks nks Hkkxksa, Hkkx v vkSj Hkkx c esa ckaVk x;k gSA vkidks nksuksa Hkkxksa ds iz”uksa ds mRrj

fy[kus gSaA

(ii) lHkh iz”u vfuok;Z gSaA

(iii) iwjs iz”u i= ij dksbZ p;u izkIr ugha gS ijUrq ikap&ikap vadks ds ikWap iz”uksa esa Hkhrjh p;u fn;k x;k

gSA bu iz”uksa esa vki d soy ,d Hkhrjh p;u dks mRrj fy[kus ds fy, pqu ldrs gSaA

(iv) vkidks Hkkx v vkSj Hkkx c ds lHkh iz”uksa ds mRrj iF̀kd&i`Fkd fy[kus gksaxsA

(v) Hkkx v ds iz”u la[;k 1 ls 3 ds iz”u ,d&,d vad ds gSaaA buds mRrj ,d “kCn vFkok ,d okD; esa

nsaA

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(vi) Hkkx v ds iz”u la[;k 4 ls 7 ds iz”u nks&nks vadksa ds gSaA buds mRrj yxHkx 30&30 “kCnksa esa nsus gSaA

(vii) Hkkx v ds iz”u la[;k 8 ls 19 ds iz”u rhu&rhu vadksa ds gSaA buds mRrj yxHkx 50&50 “kCnksa esa nsus

gSaA

(viii) Hkkx v ds iz”u la[;k 20 ls 24 ds iz”u ikap&ikap vadksa ds gSaA buds mRrj yxHkx 70 “kCnksa esa nsus gSaA

(ix) Hkkx c ds iz”u la[;k 25 ls 42 ds iz”u iz;ksxkRed dkS”ky ij vk/kkfjr cgqfodYih iz”u gSaA izR;sd

iz”u ,d vad dk gSA fn, x;s pkj fodYiksa esa ls vkidks dsoy ,d lcls mi;qDr fodYi pquuk gSA

Section A 1. In which type of clothes would you be more comfortable during summers.

2. State Newton‘s third law of motion.

3. Name the plastid which stores starch, oils and protein granules.

4. State the property involved in

(i) the process of separation of 2 immiscible liquids.

(ii) The process of separation of 2 miscible liquids.

i ii

5. What happens to the force of gravitation between two objects if the masses of both objects

are doubled ? How does the force of gravitation change when the distance between

two objects is reduced to half ?

6. ―Lysosomes are a kind of waste disposal system of a cell.‖ Justify the statement.

7. (a) Which connective tissue matrix contain salts of calcium and phosphorus ?




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(b) Which connective tissue is present in ear ?

(c) Which connective tissue connects two bones ?

(d) Which connective tissue is found in the bone marrow ?

(a)

(b)

(c)

(d)

8. (a) Define boiling point.

(b) Express the boiling point of water in celsius as well as kelvin scale.

(c) A diver is able to cut through water in a swimming pool. Which property of matter does

the observation show ?

(a)

(b)

(c)

9. Name the type of colloids in each in which dispersed phase and the dispersing medium are

respectively :

(a) liquid and gas.

(b) liquid and liquid.

(c) liquid and solid.

Give one example of each.

(a)

(b)

(c)




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10. While driving Jayant travels 30 km with a uniform speed of 40 km/h and next 30 km with a

uniform speed of 20 km/h. Find his average speed.

30 km 40 km/h 30 km 20 km/h

11. State the S.I. unit of speed. A girl moves with the speed of 6 km/h for 2 h and with the speed

of

4 km/h for the next 3 h. Find the average speed of the girl and the total distance moved.

S.I. 6 km/h

4 km/h

12. What happens to the gravitational force between the two objects, if :

(a) the mass of one object is halved.

(b) the distance between them is halved.

(c) mass of both the objects as well as the distance between them is doubled.

(a)

(b)

(c)

13. State Newton‘s second law of motion and prove that Newton‘s first law of motion is a special case of

Newton‘s second law of motion.

14. Define ‗g‘ and ‗G‘. Also establish relation between the two.

‗g‘ ‗G‘

15. (a) Draw a labelled diagram of a neuron. (Two labellings)

(b) Identify the tissue which is made up of these cells.

(c) Name one organ that is made of this tissue.




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(a)

(b)

(c)

16.

(a) Identify the tissue shown in the figure.

(b) Infer the characteristic features of those cells present in this tissue.

(c) Specify any two parts of the plant where such cells are present.

(a)

(b)

(c)

17. Give any three points of difference between prokaryotic and eukaryotic cell.

18. Broiler production is indeed a solution to increase the production of nutritious animal protein food.

List six factors that need to be considered for broiler production.

19. (a) What are pesticides ?

(b) Why do excessive use of pesticides not advisable ?

(c) Name two preventive measures against pests.

(a)




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(b)

(c)

20. (a) Compare true solution, suspension and colloids in terms of :

(i) filterability (ii) stability

(b) List two factors which bring about a change in the state of matter say, gas to liquid.

(a) (i) (ii)

(b)

OR (a) Write any three differences between a physical change and a chemical change.

(b) When is a solution said to be saturated ? How can you change a saturated solution to an

unsaturated solution without adding any more solvent to it ? Explain in brief.

(a)

(b)

21. (a) What is matter ? Write two properties of solids and two properties of liquids.

(b) Ramesh took two beakers A and B containing hot water and cold water respectively. In each

beaker he dropped a crystal of copper sulphate. He kept the beakers undisturbed. After

some time what did he observe ? Why ?

(a)

(b) A B

OR Define melting point of a solid. At what temperature in the Kelvin scale does ice melt ? In the

experiment to determine the melting point of ice, why does the temperature not rise till all the ice

melts even though heat is continuously supplied ? What is this heat energy called ?




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22. (a) Give reasons for the following : 5

(i) An athlete pushes the earth backward with his hands and feet, just before the start

of the race.

(ii) On pulling the string of a bow, the arrows goes forward.

(b) A cricket ball of mass 100 g moving at 25 ms1 is stopped by a player who catches the

ball by moving his hands backward in 0.04 s. Calculate the

(i) change in momentum of the ball,

(ii) force exerted by the player on the ball to stop it.

(a)

(i)

(ii)

(b) 25 ms1 100 g

0.04 s

(i)

(ii)

OR (a) Define force. Write its S.I. unit.

(b) The motion of a body of mass 10 kg is shown in the vt graph. Find :

(i) its acceleration

(ii) the force acting on the body

(iii) the change in its momentum in 10 seconds from start.




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(a) S.I.

(b) 10 kg

(i)

(ii)

(iii) 10

23. A train starting from rest, pick up a speed of 10 m/s in 100 s. It continues to move at the same speed

for the next 250 s. It is then brought to rest in the next 50 s. Plot a speed – time graph for the entire

motion of the train.

(i) acceleration of the train while accelerating

(ii) retardation of the train while retarding

(iii) and the total distance covered by the train.

100 s 10 m/s 250 s

50 s

(i)




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(ii)

(iii)

OR List two differences in tabular form between speed and velocity. When is a body said to have :

(a) uniform velocity and

(b) variable velocity.

How is the average velocity of a body calculated when its velocity changes at a non uniform

rate ?

(a)

(b)

24. (a) A farmer wants to improve the cattle breed for getting higher yield and for resistance to

diseases.Name the method he should adopt to get animals of desired qualities ? Illustrate it for the cows

(b) Name the two types of food requirements of dairy animals ?

(c) Differentiate between roughage and concentrates in animals feed.

(a)

(b)

(c)

OR (a) List four useful characteristics that are desired to be incorporated in crop varieties for good crop

production.

(b) Explain two methods by which these desirable characters can be incorporated in a crop.

(a)

(b)




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Section B

25. To prepare a colloidal solution of starch one should first —

(a) add starch powder to boiling water and stir

(b) add starch powder to cold water and stir

(c) heat starch powder and then add water to it

(d) add a thin paste of starch powder to boiling water and stir

(a)

(b)

(c)

(d)

26. Following four unlabelled mixtures after stirring well were kept for observation and a student was

asked to identify the transparent solution. His correct identification would be —

(a) copper sulphate + water (b) milk + water

(c) mud + water (d) starch + water

(a) + (b) +

(c) + (d) +

27. When iron filings and sulphur are heated :

(a) a black mass is obtained (b) the mixture changes from black to yellow

(c) a pungent smelling gas is produced (d) the mixture becomes brown




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(a) (b)

(c) (d)

28. On heating crystals of copper sulphate in a test tube it is observed that —

(a) the substance sublimes (b) brown fumes are evolved

(c) a grey mass is formed (d) white residue is left behind

(a) (b)

(c) (d)

29. Which of the following is the correct method for finding the melting point of ice ?

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

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

30. Ram wants to find out the accurate boiling point of water, he should use :

(a) tap water (b) distilled water

(c) salt water (d) sugar solution




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(a) (b)

(c) (d)

31. The following experimental setup indicates :

(A) sedimentation (B) sublimation

(C) distillation (D) crystallization

(A) (B)

(C) (D)

32. To prepare iron sulphide by heating a mixture of sulphur and iron, we should use a :




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(a) copper dish (b) petri dish

(c) watch glass (d) china dish

(a) (b)

(c) (d)

33. On burning magnesium ribbon in air —

(a) black ash is obtained

(b) a pungent smelling gas evolves

(c) dazzling white light is produced

(d) an ash is formed which turns blue litmus red

(a)

(b)

(c)

(d)

34. When a mixture of sand, sodium chloride and ammonium chloride is heated in a China dish, dense

white fumes are evolved. On cooling these fumes on a glass plate a white deposit is obtained. This

white deposit may be :

(a) Sodium chloride

(b) Sand

(c) Sodium chloride and ammonium chloride

(d) Ammonium chloride




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(a)

(b)

(c)

(d)

35. A student put five raisins each in two beakers A and B. Beaker A contained 20 mL of distilled water

and beaker B has 20 mL of saturated sugar solution. After some time the student would observe that

the raisins in :

(a) beaker A were more swollen than those in beaker B.

(b) beaker B were more swollen than those in beaker A.

(c) both beakers A and B were equally swollen.

(d) beaker A did not swell up at all.

A B 2 A 20 mL B

20 mL

(a) A B

(b) B A

(c)

(d) A

36. While preparing a temporary mount of onion peel, glycerin is used to :

(a) preserve them

(b) make the organelle clearly visible

(c) prevent the cells from dehydration

(d) dis-infect the cells.

(a)




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(b)

(c)

(d)

37. A student added only two drops of iodine to a rice extract in test tube A. Another student added a

few drops of potato extract to iodine solution in test tube B. They would then observe :

(A) a change of colour to blue – black in test tube A but not in test tube B

(B) no change of colour in any test tubes

(C) a change of colour to blue – black in test tube B but not in test tube A

(D) a change of colour to blue – black in both the test tubes A and B

A

B

(A) A B

(B)

(C) B A

(D) A B

38. The reagent we use to test the presence of metanil yellow in the sample of a dal is :

(A) H2SO4 (B) HCl (C) NaOH (D) HNO3

(A) H2SO4 (B) HCl (C) NaOH (D) HNO3

39. Rahul was observing an onion peel stained with safranin under a microscope. 1

The colour of the cell wall appeared :

(a) Deep blue (b) Black

(c) Pinkish red (d) Yellow




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(a) (b)

(c) (d)

40. Which one of the following tissue has cells that are having lignified thickened walls ?

(a) Parenchymatous tissue (b) Collenchymatous tissue

(c) Sclerenchymatous tissue (d) Meristematic tissue

(a) (b)

(c) (d)

41. 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 raisin is –

(a) 20 % (b) 10 % (c) 75 % (d) 40 %

2.0 g 3.5 g

(a) 20 % (b) 10 % (c) 75 % (d) 40 %

42. While observing a thin section of a plant stem, four students sketched sclerenchyma as given

below. The correct diagram is :

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




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




summative assessment i (2011) lakdfyr ijh{kk&i ......(b) infer the characteristic features of...

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