Mock Tests 20 20 Class 8 Science Brain Mapping Academy Hyderabad Standard 8 VIII

99 Pages·2019·3.012 MB·English

by  BMA Expert Teachers

More Practice - More Score
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This 'Mock Test 20-20 series' provides students,
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any Regional / National / International Olympiad. T
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The salient features of this series : 2
0 SERIES
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l Key to all test papers S
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l Evaluation sheet for performance analysis of each test. rie Model Recurring Questions
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l ‘Unique Diagnostic Table’ for diagnosing grades in each chapter. -
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l Grid for drawing graph of your overall preparedness. CIE
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Class 8
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recording or otherwise without the prior written permission of the publisher.
ISBN :978-93-82058-92-2

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Contents
Page No.
Mock Test Paper 1 ....... 5
Mock Test Paper 2 ....... 9
Mock Test Paper 3 ....... 13
Mock Test Paper 4 ....... 17
Mock Test Paper 5 ....... 21
Mock Test Paper 6 ....... 25
Mock Test Paper 7 ....... 29
Mock Test Paper 8 ....... 33
Mock Test Paper 9 ....... 37
Mock Test Paper 10 ....... 41
Mock Test Paper 11 ....... 45
Mock Test Paper 12 ....... 49
Mock Test Paper 13 ....... 53
Mock Test Paper 14 ....... 57
Mock Test Paper 15 ....... 61
Mock Test Paper 16 ....... 65
Mock Test Paper 17 ....... 69
Mock Test Paper 18 ....... 73
Mock Test Paper 19 ....... 77
Mock Test Paper 20 ....... 81
OMR Response Sheets ....... 84
Diagnostic Table ....... 94
Key ....... 96
Preparedness Graph
This page is intentionally left blank.
ClaPs1asp 8e -rScience MoScCk ITEeNstC PEaper 1
Mock Test CLASS - 8
Fill the correct options here and finally in OMR response sheet.
1 Which part of the human eye controls the
focus of the eye by varying its thickness? [ ]
(A) Ciliary muscles (B) Iris
(C) Pupil (D) Retina
2 Polythene is produced by [ ]
(A) isomerization (B) polymerisation
(C) hydrogenation (D) all of the above
3 Which of the following is a good conductor of
electricity? [ ]
(A) Solid NaCl (B) Vinegar
(C) Distilled water (D)Liquid oxygen
4 Which of these build the hive, collect nectar and
pollen, clean the cells and protect the hive? [ ]
(A) Queen bee (B) Worker bee
(C) Drone (D)Male bee
5 Which figure shows the correct direction of
frictional force when a wooden block is
moving up on an inclined plane? [ ]
(A) (B)
(C) (D)
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Class 8 -Science Mock Test Paper 1
6 Which substance can be used to put out fires? [ ]
(A) Wood (B) Petrol
(C) Sand (D) Kerosene
7 Which among the following is a dark coloured,
viscous, strong smelling liquid? [ ]
(A) Kerosene (B) Alcohol
(C) Petroleum (D)All of these
8 When an uncharged body touches a charged
body, then what happens? [ ]
(A) It acquires a similar charge as the charged body.
(B) It acquires an equal but opposite charge.
(C) A charged body gains some charge from an
uncharged body.
(D)The uncharged body remains uncharged.
9 The organic manure is considered better than
fertilisers because [ ]
(A) it can be prepared in the factories.
(B) it is less rich in plant nutrient.
(C) it improves the texture of the soil.
(D) it decreases the water holding capacity of the soil.
10 In which of the following media does the
sound travel with least speed? [ ]
(A) liquids (B) Solids
(C) Gases (D) Semi-solids
11 Fresh endometrium is formed every month in [ ]
(A) ovary. (B) ureter.
(C) urethra. (D) uterus.
6 Brain Mapping Academy
Class 8 -Science Mock Test Paper 1
12 Which of the following is not a force? [ ]
(A) Water in rivers flowing downwards.
(B) Density of an iron object.
(C) Tension of a rope.
(D) Air resistance against a moving bicycle.
13 Which of the following shows a modern
technology measure used to preserve and
conserve the environment? [ ]
(A) Practising crop rotation
(B) Using leaded petrol in motor vehicles
(C) Using machines in agricultural industry
(D) Converting biological wastes into biogas
14 What are the characteristics of light used
in a periscope? [ ]
(A) Light can be reflected
(B) Light travels in straight lines
(C) Light can be refracted
(D) Both (A) and (B)
15 Identify the harmful radiations emitted by
the sun. [ ]
(A) Ultra violet (B) Infra red
(C) Visible (D) Radio waves
16 A metal spoon has to be coated with copper
using electricity. The metal spoon should be [ ]
(A) made the cathode (B) made the anode
(C) made the key (D) made the electrolyte
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Class 8 -Science Mock Test Paper 1
17 What may happen due to improper methods of
disposal of plastic wastes by burning or
throwing them into rivers? [ ]
(i) Endanger the lives of aquatic plants and animals.
(ii) Causes air pollution.
(iii) Damages our immune system.
(A) (i) and (ii) only (B) (ii) and (iii) only
(C) (i) and (iii) only (D) (i), (ii) and (iii)
18 The information given in the box is about the
organelles present in a cell.
I. Cytoplasm II. Cell wall III. Nucleus IV. Chloroplast
The above cell cannot be an animal cell because
of the presence of which of the following cell
organelles ? [ ]
(A) I and II only (B) II and III only
(C) II and IV only (D) I and IV only
19 Why does smoothening a surface in contact
beyond a certain limit raises friction? [ ]
(A) Actual area of contact increases.
(B) Surface irregularities are increased.
(C) Surface projections are sharpened.
(D) Decrease in weight of object.
20 Which property of coke makes it useful in the
manufacture of steel? [ ]
(A) Availability in pure form.
(B) Toughness.
(C) Porosity.
(D) Ability to act as reducing agent.
8 Brain Mapping Academy
ClaPs2asp 8e -rScience MoScCk ITEeNstC PEaper 2
Mock Test CLASS - 8
Fill the correct options here and finally in OMR response sheet.
1 A figure of a periscope is shown below. Which
labelled parts should be adjusted to view an
object placed higher? [ ]
R
(A) P {{
(B) Q (
P
Q
(C) R
(D)All of these
2 Which of the following is NOT a natural polymer? [ ]
(A) Natural rubber (B) Polyester
(C) Protein (D)Starch
3 Siddu passed electricity through two samples
one containing distilled water while other
containing mineral water. He found that
galvanometer deflected only in case of sample
containing mineral water. What conclusions
did he draw from the experiment? [ ]
(A) Mineral water is safe for drinking.
(B) Mineral water is a good conductor of electricity.
(C) Mineral water contains acids.
(D)Mineral water can be used in boilers.
4 Which of the following is a communicable
disease? [ ]
(A) Cancer (B) Malaria
(C) Heart attack (D)Diabetes
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