50
8
Level 1
SET 2 10 35 3
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LOGICAL REASONING
1.
Find the missing number from the options, if a certain rule is followed row-wise or column-wise. A. B. C. D.
2.
13 54 54
42 36 6 4
6.
?
7 4 5 32
7897653528972459297647
27 144 68
There is a denite relationship between gures (i) and (ii). Establish a similar relationship between gures (iii) and (iv) by selecting a gure from the options that would replace (?) in gure (iv).
A.
A. C.
7.
8.
3.
4.
30 10
B. D.
Chinese a d
16 14
B. D.
18 15
Choose the correct water image of Fig. (X).
Fig. (X)
A.
B.
C.
D.
20 15
B b c
Painters f
9.
e
g
Musicians
Which letter represents Chinese who are musicians but not paint ers ? A. C.
d b
B. D.
%×#$ %#×$ %+×$ +×%$
A set of three gures X, Y and Z showing a sequence of folding of a piece of paper. Figure Z shows the manner in which the folded paper has been cut. Select a gure from the options which will most closely resembles the unfolded form of gure Z.
c a
In a certain code language, 'BRAIN' is written as '*%÷#×' and TIER is written as '$#+%'. How will RENT be written in that code language?
A. B. C. D.
2
Three Four
Study the given diagram carefully. A
5.
B. D.
D.
Malti walked 12 metres towards West, then turns to her right and walked 8 metres and then turns to her left and walked 6 metres. Finally she t urns around and walked 12 m straight. What is the shortest distance (in metres) between her starting point and the present position? positio n? A. C.
One Five
Find the number of triangles formed in the given gure.
A. C.
B.
C.
How many even numbers are there in the given below sequence of numbers each of which is immediately followed by an odd number and immediately preceded by an even numb number? er?
X
Y
Z
A.
B.
C.
D.
Class 8 | Level-1
10. Select a figure from the options which satisfies the same conditions of placement of the dots as in Fig.(X).
Fig. (X)
A.
B.
C.
D.
SCIENCE 11.
A. B. C. D.
Which one of the following gures represent correct path of a ray of ligh t throu gh a glas glasss pris prism? m? 45°
45°
A.
B. 90°
45° 45° 90°
45°
45°
15.
45°
45°
C.
90°
45°
45°
is used to pull a body, which is suspended A force F is from a string, to one side to the right as shown in the diagram.
Which of the following vector diagrams represent all the forces acting on the body at point A? A.
14.
16.
B.
C.
13.
Two identical light bulbs, X and Y , are connected in series as shown in the sketch below. How will the brightness of the bulbs change if switch S is closed?
D. 90°
12.
It is on the mirror and inverted. It is 10 cm from the mirror It is real A line joining the top of the object to the top of the image is perpendicular to the plane of the mirror.
D.
None of these.
The moon produces no light, yet it shines at night. Why is this so? A.
The moon reects the light from the Sun.
B.
The moon rotates at a very high speed.
C.
The moon is covered with a thin layer of ice.
D.
The moon has many craters.
Which one of the following is a property of the image of an object placed 20 cm in front of a plane mirror?
Class 8 | Level-1
17.
A.
X -brighter, -brighter, Y -dimmer -dimmer
B.
X -dimmer, -dimmer, Y -brighter -brighter
C.
X -brighter, -brighter, Y -not -not lit up
D.
X -not -not lit up, Y -brighter -brighter
A satellite is in a circular orbit about the Earth at an altitude at which air resistance is negligible. Which of the following statements is true? A.
There is only one force acting on the satellite.
B.
There are two forces acting on the satellite, and their resultant is zero.
C.
There are two forces acting on the satellite, and their resultant is not zero.
D.
None of the preceding statements are correct.
When a ray of white light is passed through a prism, the path of the rays will be as shown in A.
e i t t e W h
C.
e i t t e h W
Violet
B.
e i t t e W h
Blue
D.
e i t t e W h
Green Red
Red Violet
Red
Violet
3
18.
A chain of hydrogen bombs is being exploded all the time in the Sun due to the fusion process, yet you do not hear the sound, because A. B. C. D.
19.
D.
B.
C. D.
30,000 g wt 50,000 g wt
B.
4
Time
+ +
Insulated stand
A. B. C. D. 26.
Positive charg charges es ow from the earth to the sphere Electrons ow from the sphere to the earth Electrons ow from the earth to the sphere It is completely discharged.
Observe the given series carefully.
Which of the following reactions is possible? Fe + CuSO4 → FeSO4 + Cu Cu + H2SO4 → CuSO4 + H2 Pb + SnCl2 → PbCl2 + Sn SnO + Cu → CuO + Sn
Study the owchart carefully and identify X and and Y . olourless
M = = 10 m M = = 100 m
If the volume of a 50 g substance is 20 cm3, and the density of water is 1 g cm –3 , what is the apparent weight of the body, assuming the body is completely = 1000 cm/s 2) immersed in water ? ( g =
1 minute
+
27.
23.
Time
+
A. B. C. D.
B. D.
Time
A positively charged rod is brought close to a metal sphere as shown. If the sphere is earthed with a nger, then
The particles warmed and spread farther apart. The particles warmed and moved closer together. The particles cooled and spread farther apart. The particles cooled and moved closer together.
m = M m = 10 M
1 minute Speed
D.. D 1 minute
When the system shown in the adjoining gure is in equilibrium and if the area of cross-section of the smaller piston and bigger piston are a and 10 a then
A. C.
Time
C.
25.
20,000 g wt 40,000 g wt
A parachutist falls for 1 minute before his parachute opens. Which graph best describes how his speed varies with time? Speed Speed
1 minute Speed
A kite skillfully held stationary in the sky. A ball falling freely from a height. An aeroplane rising upwards at an angle of 45° with the horizontal with a constant speed. A cork oating on the surface of water.
The forces are the same, but Earth's acceleration is greater. The forces are the same, but the moon's acceleration is greater. The force on Earth and Earth's acceleration both are greater. The force on Earth is greater, but its acceleration is less.
B. D.
A.
If we compare the effect of Earth's gravity on the moon with the effect of the moon's gravity on Earth, we nd that A.
22.
The sound so generated is absorbed by various layers of the Sun The sound so generated dissipates away The Sun is very far away The space between the Sun and the Earth is void.
Sam's mother dropped an ice cube on the kitchen counter. Sam noticed later that there was a puddle of water where the ice cube had been. What happened to the water particles? A. B. C. D.
21.
24.
In which of the following cases, the net force is not zero?
A. B. C.
20.
A. C.
A. B. C. D.
X
HCl
+
NaOH
Phenolphthalein
Y
NaCl + H2O = Methyl orange, Y = X = = Colourless = Phenolphthalein, Y = = Pink X = X = = Phenolphthalein, Y Colourless Colourless = Methyl orange, Y = X = = Pink
Class 8 | Level-1
28. Plastics are used for making handles of cooking pots, buckets to ll hot water, containe containers rs to be used in microwaves and in linings of refrigerators. Which property of plastic plasticss is being used in these examples?
A. B. C. D. 29.
33.
Plastics are poor conductors of electricity. Plastics are poor conductors of heat. Plastics are insoluble in water. Plastics are more durable than steel and wood.
Vidisha performed three experiments. In 1, she put wooden blocks under the chimney which was kept over the burning candle. In 2, she removed the blocks and let the chimney rest on the table and in 3, she covered the chimney with a glass plate.
Match the column I with with column II and select select the correct option from the codes given below. Column I Column II 1
a. b.
Unripe mango`
c.
Spinach
d. A. B. C. D. 30.
Tea
(i)
Tartaric acid
(ii)
Malic acid
(iii) Tannic acid
A. B. C. D.
Read the following statements and select the the correct option. Statement 1 : Metals are sonorous.
34.
Statement 2 : Metals are generally brittle in solid state, they break into pieces when hammered. Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1. Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1. Statement 1 is true and statement 2 is false. Both statements 1 and 2 are false.
B. C. D.
31.
The process of rusting is a ______ change. For rusting, both ______ and ______ are required. The salt present in sea water makes the process of rusting ______.
32.
B.
C. D.
Chemical, Physical, Chemical, Physical,
Air, Air, Air, Air,
Water, Water, Water, Water, Water, Water,
Faster Slower Slower Faster
Study the following chart and identify P and Q. Carbon Crystalline form Grap aphi hite te
P
A. B. C. D.
P Diamond Coal gas Charcoal Diamond
Class 8 | Level-1
Amorphous form Coke Q Charcoal Lamp black Diamond Silica
35.
The experiments show that air is essential for burning of a fuel. The experiments show that air has 1/5th part of oxygen. The experiments show that the presence of a combustible material is must for burning of a fuel. The experiments show that the flame has two regions - combustible and non-combustible.
Animals like the Tasmanian tiger have become extinct due to various reasons. Which of the following statements represent the causes of the extinction of such animal species? A.
Fill in the blanks by choosing the correct option.
A. B. C. D.
3
The observations are shown in the given gure. What do the experiments show?
(iv)) Oxa (iv Oxalic lic aci acid d Apple a - (iii), b - (i), c - (iv), d - (ii) a - (iv), b - (iii), c - (i), d - (ii) a - (ii), b - (iv), c - (i), d - (iii) a - (i), b - (ii), c - (iii), d - (iv)
A.
2
The animal species was widely hunted and killed. The animal species lacked food when the habitats were cleared. The animals were preyed on by many predators. All of these
Two similar cabbage plots plots X X and and Y , next to each other in an open eld were selected for an experiment. In plot X , all the dead parts of the plants were cut and thrown away as they appeared. In plot Y , the dead parts of the plan plants ts were allo allowed wed to fall and decay in the ground. Which of the following statements is correct regarding this? A. B.
Q
C.
D.
Cabbage in plot plot X X will will show better growth because dead parts which attract pathogens are removed. Cabbage in plot Y will will show better growth because nutrient replenishment of soil occurred by dead fallen parts. Cabbage in both plots will show almost similar growth due to lack of pathogens in plot X and nutrient replenishment in plot Y . None of these
5
36.
Refer the given gure.
A. C.
42.
B.
C. Which of the following statements is correct about the part labelled X ?
A. B. C. D.
It gives protection to the penis. It is intermediate structure between sperm duct and penis. It is a narrow duct that helps in passage of urine only. It is a narrow duct that helps in passage of both urine and sperm.
D. 43.
39.
B.
B. D.
44.
Nucleus Ribosomes
B. D.
Mitochondria Either A or C
Which of these these might might indicate a possible possible drug problem problem with adolescents? (i) Always borrowing or stealing money (ii) Having watery eyes and dilated pupils (iii) (ii i) Sudden resistance to discipline at home or at school (iv) Hiding in quiet places like bathrooms, storerooms, stairways, etc A. (i) and (iii) only B. (i), (ii) and (iii) only C. (ii), (iii) and (iv) only D. All of these
Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1. Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1. Statement 1 is true and statement 2 is false. Both statements 1 and 2 are false.
Match column I with with column II and select the correct option from the codes given below. Column I
Minerals salts None of these
41. A woman has a 28 day menstrual cycle. If her menstruation started on April 13, when is she expected to ovulate?
6
C. D.
of a newly divided bacterial cell was removed Part X of and replaced by one from an entirely different source. The cell showed changed morphology, functioning and other characters. The part X could could be A. C.
40.
Oxygen Carbon dioxide
Read the given statements and select the correct option.
A.
Which of the following is not produced by bacteria when they decompose matter? A. C.
Some asexually reproducing organisms can undergo sexual reproduction also. In animals which undergo external fertilization, development of embryo takes place inside the female body. External fertilizat ion requires a medium like water. Asexual reproduction helps in maintaining characters of a species.
Statement 2 : Weather is a long term average environmental conditions of a particular place.
(i)
38.
April 24 May 1
Statement 1 : Climate is the current condition or the state of atmosphere of a particular place in terms of humidity, cloudiness, temperature, wind, etc.
37. Which of the following practices help to reduce damage to the environment?
Minimizing the use of non-biodegradable materials. (ii ii)) Purchasin g products made from recycled materials. (iii) Using petrol in place of CNG in automobiles. A. (i) and (ii) only B. (i) and (iii) only C. (ii) and (iii) only D. (i), (ii) and (iii)
B. D.
Which of the following statements is incorrect? A.
X
April 19 April 27
(i)
Cactus, spurge trees
(ii)
Juniper, birch, willow
a.
Tro ropi pica call fore forest st
b.
Alpine forest
c.
Coni Co nife fero rous us fo fore rest st (iii) Jackfruit, jamun, mango
d.
Dry forest
A. B. C. D. 45.
Column II
a a a a
-
(iv) Deodar, chir, maple
(i), b - (iii), c - (iv), d - (ii) (iii), b - (ii), c - (iv), d - (i) (iii), b - (ii), c - (i), d - (iv) (iv), b - (i), c - (iii), d - (ii)
In the given gure, pulmonary vein is represented by the letter
A.
P
B.
Q
C.
R
D.
S.
Class 8 | Level-1
ACHIEVERS SECTION
46.
A man stands in front of a cliff and res a gun. He hears an echo after 2.5 s. He moves 80 m closer to cliff and again res a gun, he hears another echo after 2 s. Then the speed of sound of gun is A. C.
47.
B.
C. D.
320 m/s 330 m/s
The weight of the rst block is greater than the second The pressure on the table due to the second block is more The pressure on the table due to the rst block is more The thrust due to the rst block is more.
50.
The given diagram shows many sperms near an egg. Which of the following statements about reproduction in animals is/are incorrect?
Egg
Read the following statements and mark the correct statement.
A. B.
C. D. 49.
B. D.
Bacteria X causes typhoid. Bacteria Y causes a disease which disrupts proper exchange of gases. (iii) Bacteri a Z converts lactose sugar of milk into lactic acid. A. (i) only B. (i) and (ii) C. (iii) only D. (ii) and (iii)
A rectangular block of metal has an area area A A and and height h is resting on a table. If anothe r block of area A A/2 /2 but height 2h 2h of the same metal is placed on the table,
A.
48.
160 m/s 150 m/s
(i) (ii)
Solar energy, wind energy and biomass are non-renewable sources of energy energy.. Manufacturing goods in factories uses up huge amount of energy. We use much less energy at home today as compared to earlier days. Petroleum is a fossil fuel formed over three hundred years.
Refer the given gures of bacteria (X, Y and Z) and select the incorrect statement(s) regarding them.
Sperms
(i) Sperms are produced by male animals. (ii) Usually one egg is fertilized by many sperms. (iii) After fertilization, the egg will grow and develop into young animal. (iv) Fertilization always takes place while the egg is still inside the body of the female animals. A. (i) only B. (ii) and (iv) C. (iii) and (iv) D. (i), (ii) and (iii)
SPACE FOR ROUGH WORK
Class 8 | Level-1
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