Important Instructions for the School Principal

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.
Page 1 of 14
I, 2012
SUMMATIVE ASSESSMENT – I, 2012
SC1-042
/ SCIENCE
IX / Class – IX
3
90
Time allowed : 3 hours
Maximum Marks : 90
(i)
(ii)
(iii)
(iv)
(v)
1
3
(vi)
4
7
(vii)
8
19
(viii)
20
24
(ix)
25
42
30
50
70
General Instructions :
(i)
(ii)
(iii)
(iv)
(v)
(vi)
(vii)
(viii)
(ix)
The question paper comprises of two Sections, A and B. You are to attempt both the
sections.
All questions are compulsory.
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.
All questions of Section-A and all questions of Section-B are to be attempted separately.
Question numbers 1 to 3 in Section-A are one mark questions. These are to be answered in
one word or in one sentence.
Question numbers 4 to 7 in Sections-A are two marks questions. These are to be answered
in about 30 words each.
Question numbers 8 to 19 in Section-A are three marks questions. These are to be answered
in about 50 words each.
Question numbers 20 to 24 in Section-A are five marks questions. These are to be answered
in about 70 words each.
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.
Page 2 of 14
SECTION-A
1.
1
Name the state of matter in which particles just move around randomly because
of very weak force of attraction.
2.
1
Name two cell organelles having double - membrane envelope.
3.
1
State the meaning of recoil velocity of a gun ?
4.
2
(a)
(b)
Give reason for the following :
(a)
In summer wearing of cotton clothes is more comfortable.
(b)
Water kept in an earthern pot becomes cool in summer.
5.
2
(a)
(b)
(i)
(a)
(b)
(ii)
Write any one point of difference between mixtures and compounds.
Classify the following as mixture or compound :
(i)
sugar
(ii)
Air
6.
2
List any two functions of epithelial tissue in human body.
7.
2
How does the force of gravitation between two objects change when the
distance between them is reduced to half ?
8.
3
State any three types of insect pests found in our crop fields. How do they
attack the plants ?
Page 3 of 14
9.
3
Name the variety of honey bees that are best suitable for honey production.
Why is this variety better than other varieties for honey production ? Give at
least two points.
10.
3
(a)
(b)
(c)
Tabulate the differences between the three states of matter with respect to the
following :
(a)
Inter particle space
(b)
Compressibility
(c)
Rigidity
11.
3
(a)
(b)
(i)
(ii)
(a)
(b)
State any one difference between pure and impure substances.
What will you observe when :
(i)
Carbon disulphide is added to the compound iron sulphide.
(ii)
Dil. Hydrochloric acid is added to a mixture of iron filings and
sulphur powder.
12.
3
Who gave the term Golgi apparatus ? Name one cell organelle that is formed by
Golgi apparatus. Write any two functions of Golgi apparatus.
13.
3
Name any three connective tissues. Give any one function of each.
14.
3
(a)
(b)
(c)
Write any one function of the following :
(a)
Xylem
(b)
Phloem
(c)
Meristematic tissue
Page 4 of 14
15.
3 km
2 km
3.5 km
3
(a)
(b)
A person moves a distance of 3 km towards east, then 2 km towards north and
then 3.5 km towards east. Find :
(a)
the distance covered by the person.
(b)
the displacement of his motion.
16.
3
(a)
(b)
(a)
(b)
17.
When a horse suddenly starts running a careless rider falls backwards.
Explain why ?
State the action and reaction in swimming action of a swimmer.
3
(a)
(b)
(c)
(i)
(a)
(b)
(c)
(ii)
State the relation between force and momentum.
State the law of conservation of momentum.
What is the total momentum of cannon and shell,
(i)
before firing
(ii)
after firing
18.
0.5 s
3
(g = 10 ms-2 )
(i)
(ii)
0.5 s
(iii)
A car falls off a ledge and drops to the ground in 0.5 s (g = 10 ms-2 ). Calculate :
(i)
What is its speed on striking the ground ?
(ii)
What is its average speed during 0.5 s ?
(iii)
How high is the ledge from the ground ?
19.
31
9.1  10
kg
3
10 A
11
Nm2 kg 2, 1A  10
31
kg are at a distance of 10A. Calculate
(G  6.67  10
Two electrons each of mass 9.1  10

10
m)
the gravitational force of attraction between them (G  6.67  10
10
1A  10
11
2
Nm2kg
m)
Page 5 of 14
20.
5
(a)
(b)
(a)
(b)
Differentiate between fertilizers and manures giving any three points of
difference.
Classify manures on the basis of biological material used for making
them.
OR
(a)
(b)
(c)
(a)
(b)
(c)
21.
Define animal husbandry.
Why is cattle husbandry done ?
Name any one indigenous and one exotic variety of cattle.
5
(a)
(b)
(c)
(a)
(b)
(c)
Define sublimation.
Write any two substances from your daily life that sublime on heating.
Describe an experiment to show the sublimation of a solid substance.
OR
C
0
1
2
3
4
5
6
7
8
10
15
20
25
30
35
3
1
0
0
5
8
12
15
19
22
30
50
73
100
100
Page 6 of 14
(a)
2
(b)
30
3
35
While heating ice in a beaker with a thermometer suspended in it, a student
recorded the following observations :
Time (in min) Temp (in C )
0
3
1
1
2
0
3
0
4
5
5
8
6
12
7
15
8
19
10
22
15
30
20
50
25
73
30
100
35
100
Based on the above observations, answer the following questions :
(a)
State the change (s) observed between 2 min, to 3 min, and name the
process involved.
(b)
Between 30 min. to 35 min, the temperature remains constant. State the
reason for this. Name the heat involved in the process and define it.
22.
5
(a)
(b)
(c)
(d)
(e)
Name the method that can be used for the separation of following mixtures
stating the principle involved :
(a)
Mixture of mustard oil and alcohol
(b)
Mixture of red dye and water
(c)
Butter from cream
(d)
Mixture of pure alum and impurities
Page 7 of 14
(e)
Mixture of oxygen and nitrogen gas in air.
OR
(a)
(b)
(c)
20 g
(a)
(b)
List any one difference between saturated and unsaturated solution.
Write any two ways by which a saturated solution can be converted into
an unsaturated solution.
20 g of sugar is dissolved in 100 mL of water. Calculate the mass
percentage of the solution.
(c)
23.
100 mL
5
(a)
(b)
(c)
(d)
(e)
(a)
(b)
(c)
(d)
(e)
What can you say about motion of a body if its distance time graph is a
straight line ?
What does the slope of a distance - time graph indicates ?
What can you say about the motion of an object whose distance - time
graph is a straight line parallel to the time axis ?
What does the slope of a speed - time graph indicate ?
What do we get from the area between the speed - time graph of a body
and time axis ?
OR
(a)
(b)
14 m
Page 8 of 14
(a)
(b)
Explain what is meant by uniform circular motion ? Give two examples.
A particle is travelling in a circle of diameter 14 m. Calculate the distance
covered and the displacement when it completes two rounds.
24.
5
(N)
State Newton’s second law of motion. Explain how this law may be used to
define a unit of force, the newton (N).
OR
What is meant by ‘inertia’ ? What are different types of inertia ? Give two
examples in each case.
/ SECTION - B
25.
1
(a)
(b)
(c)
(d)
Metanil yellow, an adulterant used in arhar dal, is basically :
(a)
An acid used in toilet cleaner
(b)
An inorganic dye used in leather, paper and textile industries
(c)
A detergent used as washing powder
(d)
None of these
26.
1
(a)
(b)
(c)
(d)
Meenu was trying to test the presence of starch in potato tuber. She forgot the
reagent with which the starch gives blue black colour. Help her to select the
correct reagent from the following :
(a)
Safranin
(b)
Methylene blue
(c)
Iodine
(d)
Eosine
27.
1
(a)
Page 9 of 14
(b)
(c)
(d)
To determine the melting point of ice, a student immersed the thermometer
bulb in crushed ice in a beaker and heated the beaker on a low flame. He would
observe :
(a)
an increase in temperature during melting of ice
(b)
a decrease in temperature during melting of ice
(c)
a decrease first, and then an increase in temperature during melting of
ice
(d)
the temperature remains constant during melting of ice
28.
1
(a)
0.1C
(b)
0.5C
(c)
2C
The least count of laboratory thermometer generally is :
(a)
0.1C
(b)
0.5C
(c)
2C
(d)
1C
(d)
1C
29.
1
(a)
(b)
(c)
(d)
In an experiment on sublimation of ammonium chloride, Ankit observed the
inner side of the funnel. He finds that :
(a)
no fumes are deposited
(b)
yellow fumes are deposited
(c)
white fumes are deposited (d)
dirty white fumes are deposited
30.
1
(a)
(b)
(c)
(d)
To prepare a colloidal solution of starch, we should :
(a)
add starch powder to boiling water and cool
(b)
add starch powder to cold water and boil
(c)
heat starch powder, add it to cold water and then boil it
(d)
add a thin paste of starch to boiling water while stirring
31.
1
(a)
(b)
(c)
(d)
Page 10 of 14
When a mixture of iron, filings and sulphur powder is strongly heated in a
china dish, the colour of the product obtained is :
(a)
grey
(b)
orange
(c)
black
(d)
pale yellow
32.
1
10
(a)
(b)
(c)
(d)
Iron filings were added to a solution of copper sulphate. After 10 minutes, it
was observed that the blue colour of the solution changes and a layer gets
deposited on iron filings. The colour of the solution formed and that of coating
on iron filings would respectively be :
(a)
yellow, green
(b)
brown, blue
(c)
red, greenish blue
(d)
green, reddish brown
33.
1
(a)
(b)
(c)
(d)
The solvent used to separate sulphur from iron filings, is :
(a)
chloroform
(b)
acetone
(c)
carbon – disulphide (d)
alcohol
34.
1
(a)
(b)
(c)
(d)
Teena added barium chloride solution to an aqueous solution of sodium
sulphate. The observation made by her in the above reaction is :
(a)
colourless solution is formed
(b)
white precipitate is formed
(c)
blue precipitate is formed
(d)
yellow coloured solution is formed
35.
1
(a)
(b)
(c)
(d)
Page 11 of 14
While preparing temporary mount of onion peel or human cheek cells, the cells
are stained to :
(a)
make the cell turgid
(b)
nourish the cell
(c)
help in cell multiplication
(d)
highlight the cell organelles
36.
1
(a)
(b)
(c)
(d)
In the preparation of temporary mount of onion peel which of the following is
not used :
(a)
water
(b)
glycerine
(c)
safranin
(d)
alcohol
37.
1
(a)
(b)
(c)
(d)
Human cheek cells stained in methylene blue and mounted in glycerine were
observed under a compound microscope. The components of the cell which
would be seen are :
(a)
cell wall, cytoplasm, nucleus
(b)
plasma membrane, cytoplasm, nucleus
(c)
plasma membrane, cytoplasm, nucleus, mitochondria
(d)
cell wall, plasma membrane, cytoplasm, nucleus
38.
1
A
B
C
D
(a)
(b)
(c)
(d)
Page 12 of 14
Following four slides were given for observation under microscope. The correct
identification of the slides is :
A
(a) Cheek cells
(b) Parenchyma
(c) Cheek cells
(d) Onion peel
B
Sclerenchyma
Cheek cells
Parenchyma
Cheek cells
C
Onion peel
Onion peel
Onion peel
Parenchyma
D
Parenchyma
Sclerenchyma
Sclerenchyma
Sclerenchyma
39.
1
(i)
(ii)
(a)
(b)
(c)
(d)
Aditi observed following observation while looking into a permanent slide :
(i)
Cells are long and cylindrical
(ii)
Light and dark bands are present giving striated appearance
It could be a slide of :
(a)
striated muscle fibre
(b)
smooth muscle fibre
(c)
neuron
(d)
parenchyma cells
40.
1
(a)
(b)
(c)
(d)
Page 13 of 14
While the students were performing the experiment of determining the
percentage of water absorbed by raisins, the teacher suggested that the raisins
should be wiped gently with filter paper before taking the final mass of the
soaked raisins.
This was suggested to ensure that :
(a)
the weighing scale does not get wet
(b)
hands do not get wet
(c)
the raisins lose water before weighing
(d)
only the water absorbed by raisins is weighed
41.
1
(a)
40 gwt
(b)
35 gwt (c)
45 gwt
(d)
30 gwt
A rectangular wooden block open from one side is lying on a horizontal table.
Different weights are kept in the box one by one. To establish relationship
between weight of a block and the minimum force required to just move it using
a spring balance, it is observed that the force required to just move the
rectangular block is maximum when we put a weight of :
(a)
40 gwt
(b)
35 gwt (c)
45 gwt
(d)
30 gwt
42.
1
(a)
(b)
(c)
(d)
While doing an experiment to find the relationship between the weight of a
rectangular wooden block lying on a horizontal table and the minimum force
required to just move it using a spring balance it is observed that :
(a)
more inertia less force
(b)
less inertia more force
(c)
more inertia more force
(d)
no relationship inertia and force
-oOo-
Page 14 of 14