CBSE CBSE Class 9 Science Question Paper SA II Set 1 2014

7/24/2019 CBSE CBSE Class 9 Science Question Paper SA II Set 1 2014

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IXDFF5P

II

SUMMATIVE ASSESSMENT II (2013-14)

SCIENCE /Class IX / IX

3 -3 100

Time allowed: 3 -3 hours Maximum Marks: 100

(i)

(ii)

(iii)

(iv)

(v) 1 3

(vi) 4 6 30

(vii) 7 18 50

(viii) 19 24 70

(ix) 25 33

(x) 34 36

30

(xi) 37

General Instructions:(i) The question paper comprises of three Sections, A, B and C. You are to attempt all the

sections.(ii) All questions are compulsory.(iii) There is no choice in any of the questions.(iv) All questions of Section-A, Section-B and Section-C 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 6 in Section-A are two marks questions. These are to beanswered in about 30 words each.

(vii) Question numbers 7 to 18 in Section-A are three marks questions. These are to beanswered in about 50 words each.

(viii) Question numbers 19 to 24 in Section-A are five marks questions. These are to beanswered in about 70 words each.

(ix) Question numbers 25 to 33 in Section-B are multiple choice questions based onpractical skills. Each question is a one mark question. You are to select one most


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appropriate response out of the four provided to you.(x) Question numbers 34 to36 in section B are two marks questions based on practical

skills. These are to be answered in about 30 words each.(xi) Question number37fromsection C is based on Open Text themes and is of10 marks.

SECTION-A

1

Helium atom has 2 electrons in its valence shell but its valency is not 2. Explain.

1

2Define Evolution.

1

3

When does precipitation of water droplets occur as snow, sleet or hail ?

1

4

Explain, what is Organ specific manifestation ?

2

5 75 g 55.6 g

A solid weighs 75 g in air and 55.6 g in water. Find the relative density.

2

6

State the laws of reflection of sound waves and it two applications.

2

7

Define Atomic Mass Unit. State how do atoms exist ?

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8 3 , 3 4

An atom contains 3 protons, 3 electrons and 4 neutrons. Find its atomic number, mass numberand valency ?

3

9

Define atomicity. Give an example each of monoatomic, diatomic, tetraatomic, andpolyatomic molecules.

3

10 (1894) (1959)

Carolus Liniaus gave the two kingdom classification. Later it was changed by Ernst Haikel(1894) and in 1959, Whittaker gave the five-kingdom classification.Do you think that studying about the work done by earlier scientists or their obsolete theoriesis useful for students of this generation? Give 3 reasons.

3

11

(a)

(b)

(c)

Disha saw a house wall lizard crawling in the wall and asked her mother who was a biologyteacher

(a) Is body temperature related to surrounding temperature in reptiles ? How can we define

this feature of reptiles ?

(b) What is their breathing organ ?

3

Text


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(c) Is there any reptile with four-chambered heart ? Summarize her mothers statements.

12 SI

Define potential energy. Write the SI unit of potential energy. Derive an expression for

potential energy.

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13

(a)

(b)

(c)

Identify and state the type of transformation of energy in the following cases :

(a) when coal is burnt

(b) when a dry cell discharges

(c) in a thermal power plant.

3

14

With the help of an example explain the law of conservation of energy.

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15(a)

2 Hz, 5 Hz, 20 Hz, 200 Hz, 2000 Hz

(b)(a) The sound of which of the following frequencies is andible

to human ears.2 Hz, 5 Hz, 20 Hz, 200 Hz, 2000 Hz

(b) How moths of certain families are able to escape capture?

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(a) Identify the organism shown in the picture and write the common name and scientificname of the organism.

(b) Name its phylum and kingdom.(c) Which organ of digestive system normally harbours this organism ?

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_____(a)_____

_____(b)_____ _____(c)_____

_____(d)_____ _____(e)_____

_____(f)_____

_____(g)_____ _____(h)_____

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_____(i)_____ _____(j)_____

Fill the table with appropriate term.

Disease Microbe Target Organ Mode of

Transmission

Meningitis Virus _____(a)_____ Fecal

contamination

Hepatitis _____(b)_____ _____(c)_____ Contamination

water

_____(d)_____ Bacteria Lungs _____(e)_____

Ringworm Fungus _____(f)_____ Indirect contact

_____(g)_____ Virus Lungs _____(h)_____

Dengue fever _____(i)_____ Whole body _____(j)_____

22(a)

(b)

(c)

(a) Name two different techniques employed for producingsound.

(b) Can two astronauts talk on the surface of moon as they doon the surface of earth? Explain and state reason.

(c) Why are the walls and roof of an auditorium covered with

sound absorbant materials?

5

23 31 5


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(a) 40 W 6

(b) 50 W 8

(c) 300 W 24

` 2.00

Calculate the electricity bill amount for a month of 31 days, if the following devices are used

as specified :

(a) 3 bulbs of 40 W for 6 hours.

(b) 4 tubelights of 50 W for 8 hours.

(c) A refrigerator of 300 W for 24 hours.

Given the rate of electricity is `2.00 per unit.

24

How are clouds formed ? List any three human activities that you think would lead to air

pollution and briefly explain each of them.

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/ SECTION - B

25

(a)

(b)

(c)

(d)

For effective reflection, in the experiment to verify the laws of reflection of sound how should

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the metal plates be placed?

(a) position does not affect reflection

(b) can be horizontal

(c) has to be vertical to the table

(d) may be vertical or inclined, it makes no difference

26 S.I

(a) (b)

(c) (d)

S.I unit of thrust is same as that of

(a) Pressure (b) Momentum

(c) Force (d) Density

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27

(a)

(b)

(c)

(d)

In case of pulse created in slinky, every particle :

(a) oscillates perpendicular to length of slinky

(b) gets displaced from one end to another

(c) does not oscillate

(d) depending upon slinky gets displaced

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28

(a)

(b)

(c)

(d)

Plants which never bear flowers or seeds are grouped under :

(a) Planerogams

(b) Cryptogams

(c) Spermatophyta

(d) Angiosperms

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

In a chemical reaction between sodium sulphate and barium chloride, precipitate of barium

sulphate is formed. The colour of the precipitate is :

(a) Pink (b) White (c) Orange (d) Yellow

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30 28g 6g

(a) 28 g (b) 6 g (c) 22 g (d) 34 g

28g nitrogen combines with 6g hydrogen to form ammonia gas. If the law of conservation is

true, is the mass of ammonia gas ?

(a) 28 g (b) 6 g (c) 22 g (d) 34 g

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31

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

Parul, Apurva, Diya and Shruti were given a specimen of lily for

recognizing the main characters of monocotyledonous plant. Each one

wrote three characters in favour of answer. Who gave the right answer :

Name of Student Root type Flowers Leaf Venation

Parul

Apurva

Diya

Shruti

Fibrous

Tap

Fibrous

Tap

Tetramerous

Pentamerous

Trimerous

Dimerous

Reticulate

Parallel

Parallel

Reticulate

(a) Parul (b) Apurva (c) Diya (d) Shruti

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AB

C D

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

The correct identification of dicotyledonous plant from the following figures is :

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

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(a) (b)

(c) (d)

A student is observing the life cycle of a mosquito. He observes the worm like animal during

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AB

C D


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which stage of life cycle ?

(a) Egg (b) pupa

(c) adult (d) larva

34 2 cm

7103

kg m-3

You are given a sphere of radius 2 cm. If you are asked to select a best suited spring balance todetermine its weight, then what should be the range and least count of the spring balance

(The sphere is made of an alloy of density 7103

kg m-3

)

2

35 500 cm3

g10 m/s2

A ball filled with air has a volume of 500 cm3. Calculate the minimum force applied by a child

to put it completely inside the water. (Take g10 m/s2)

2

36

Which adaptive feature found in earthworm keeps its skin always moist ?

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Section C

(* Please ensure that open text of the given theme is supplied with this question paper)

37 Theme-II (Environment and Development Lessons from the Hills) (5+5):

(a)

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(b)

(a) A report commissioned by the Union Environment and Forests Ministry in May2012 had warned the centre against going ahead with 24 hydropower projects

planned in Uttarakhand. State the reasons behind this warning. Give your views

whether it was Judicious on the part of the State government to still go ahead

with the projects. Write reasons in support of your views.

(b) The irrational human actions and unscientific approach in the name of development in

the hills of Uttarakhand has resulted in a great tragedy. State the irreversible damage

done to the basic components of environment

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CBSE CBSE Class 9 Science Question Paper SA II Set 1 2014