2 · 2018-05-03 · Class 8 - Science Mock Test Paper 15 Brain Mapping Academy61 1 What is the...

MOCK TESTOLYMPIAD

Brain Mapping Academy

2=E mcMore Practice - More Score

SCIENCE

Class 8

India’s FIRST scientifically designed portal

for Olympiad preparation

� Olympiad & Talent Exams preparation packages

Analysis Reports Previous question papers � �

Free Demo Packages Free Android Mobile App� �

YOUR

COACH

A unique opportunity to take about 50 tests per subject.

This 'Mock Test 20-20 series' provides students,

the rigorous practice they need to prepare for any Olympiad,

through carefully designed 'Multiple Choice Questions'.

Every book in this series contains

20 test papers, each of 20 questions.

This readies the students

for confidently tackling different types of questions

and prepares them adequately for

any Regional / National / International Olympiad.

www.bmatalent.com

l Key to all test papers

l Evaluation sheet for performance analysis of each test.

l for diagnosing grades in each chapter.‘Unique Diagnostic Table’

l Grid for drawing graph of your overall preparedness.

The salient features of this series :

2=E mc

8 B

MA’s O

lym

pia

d M

ock

Test 2

0-2

0 S

erie

s - SC

IEN

CE

2 2SERIES

Model Recurring Questions

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Brain Mapping Academy© All Rights reservedNo part of this book may be reproduced, stored in a retrieval system ortransmitted in any form or by any means, electronic, mechanical, photocopying,recording or otherwise without the prior written permission of the publisher.

ISBN : 978-93-82058-92-2

Disclaimer :Every care has been taken by the compilers and publishers to give correct, completeand updated information. In case any omission, printing or any other error has creptin inadvertently, neither the compiler/publisher nor any of the distributors take anylegal responsibility.In case of any dispute, all matters are subjected to the exclusivejurisdiction of the courts in Hyderabad, India, only.

Printed at :

Sri Vinayaka Art Printers, Hyderabad.

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Page No.

Mock Test Paper 1 ....... 5




















OMR Response Sheets ....... 84

Diagnostic Table ....... 94

Key ....... 96

Preparedness Graph

Contents

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Class 8 - Science Mock Test Paper 15

Brain Mapping Academy 61

1 What is the closely packed part of the cometwhich contains solid particles, stones andfrozen water called ? [ ]

(A) Coma (B) Nucleus(C) Tail (D) Orbit

2 If there is no CO2 in the atmosphere, what

would happen to the earth’s temperature? [ ]

(A) It would be less than the present.(B) It would be the same as present.(C) It would be higher than the present.(D) It depends on the O

2 content of air.

3 Identify the value of persistence of vision. [ ]

(A) 1/10th of a second (B) 1/12th of a second(C) 1/16th of a second (D) 1/20th of a second

4 In which of the following agricultural methodsdoes the farmer sows beans in his fields afterharvesting a crop of wheat? [ ]

(A) Crop rotation (B) Multiple cropping(C) Fallow field (D) Mixed cropping

5 What is the process of taking out silk threadsfrom the cocoon known as? [ ]

(A) Rearing (B) Sorting(C) Scouring (D) Reeling

Fill the correct options here and finally in OMR response sheet.

Paper

15 Mock TestCLASS - 8SCIENCE

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Brain Mapping Academy62

6 What are lightning rods made up of? [ ]

(A) Copper (B) Plastic(C) Bakelite (D) Sand paper

7 In LPG cylinder, how is the gas liquified? [ ]

(A) By increasing volume(B) By applying high pressure(C) By increasing temperature(D) By reducing pressure

8 Which of the following is true of the colourlessplastid and its function? [ ]

(A) Chloroplasts performs photosynthesis

(B) Leucoplasts performs respiration

(C) Chromoplasts are involved with protectionfrom sunlight

(D) Leucoplasts help in the storage of food

9 Which circuit gives the correct way ofconnecting an LED to light it up? [ ]

(A)S

(B) S

(C) S (D) S

10 Which material is used to prepare syntheticfibres like polyester and acrylic? [ ]

(A) Wood pulp (B) Coconut fibres(C) Petrochemicals (D) Paper pulp

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Brain Mapping Academy 63

11 How can the brain interpret the frequency of asound? [ ]

(A) By the loudness of sound

(B) By the frequency of sound(C) By the pitch of sound

(D) By the amplitude of sound

12 Which of the following statements is true forviruses? [ ]

(A) Viruses multiply only in living host.

(B) Their crystals have a definite shape.

(C) Viruses grow and multiply by themselves

outside the host.

(D) Viruses may be crystallized.

13 Why are tyres made circular in shape? [ ]

(A) It is easy to inflate circular tyres.

(B) Rolling friction is less than sliding friction.

(C) Circular tyres dissipate less heat.

(D) Circular tyres easily slow down or stop a vehicle.

14 Which of the following substances willprevent corrosion of metals? [ ]

(A) Nitrogen (B) Hydrogen

(C) Oxygen (D) Carbon

15 Which of the following is NOT a force? [ ]

(A) Muscular (B) Magnetic(C) Chemical (D) Electric

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16 Which of the following is the consequence ofman’s interference with nature? [ ]

(A) Increase in natural resources(B) Biological imbalance(C) Increase in the ozone layer(D) All of these

17 Which of the following is equal to onecosmic year? [ ]

(A) 365 days (B) 24 days(C) 2.25 × 106 days (D) 225× 106 years

18 When an oil well is drilled through rocks,which of the following comes out first? [ ]

(A) Coal gas (B) Marsh gas

(C) Natural gas (D) Carbon dioxide

19 Suppose you are in a car and there is athunderstorm. What is the best way toprotect yourself from possible harm? [ ]

(A) Remaining in the car

(B) Getting out of the car and taking cover underthe car

(C) Running to a nearby tree

(D) Getting out and standing under an electric pole

20 Which of the following processes refers to thecasting away of the skin by a caterpillar toallow a larger caterpillar to emerge ? [ ]

(A) Metamorphosis (B) Chrysalis(C) Moulting (D) Development

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Class 8 - Science Key


KeyTestNo. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Question Number

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

A B B B A C C A C C D B D D A A A C C D

A B B B A A B D C A B A B B D D C A A B

A D B C B A A D A D C B B D A A A D D A

A A B B B D B B B B C A D C C C D D C C

D B C D D A D B D B C D A B C A B D D A

C B D C C D A D C C B A C B A D D A A C

D A B D B C D D A A D A B D C B B C C C

C C A B A B A D A D C D A B A B B D D D

D B D C B D D C A B A B B D C D B C A B

C B B D B D D D D C B D C C B D D D A A

A C C D D D A B C B C C C B D A A A B A

B B D B A D B C B C B D C C D A A B D C

B A C D D D B C B C C B A A C D C A C B

C D A C A C A D B C D C C A B D B C A D

B A C A D A B D B C C A B A C B D C A C

B B B A D D C D A B A A A C D B B C A C

B C B B C D D C D B A D D A D A C A D B

B D B D B C B B B A D D B B C C C B C A

A B A C B A B C A C D A A B D C A A A C

C A A C A D A D B A D A C A D A D B D B

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MOCK TESTOLYMPIAD


2=E mcMore Practice - More Score

SCIENCE

Class 8

India’s FIRST scientifically designed portal

for Olympiad preparation

� Olympiad & Talent Exams preparation packages

Analysis Reports Previous question papers � �

Free Demo Packages Free Android Mobile App� �

YOUR

COACH

A unique opportunity to take about 50 tests per subject.

This 'Mock Test 20-20 series' provides students,

the rigorous practice they need to prepare for any Olympiad,

through carefully designed 'Multiple Choice Questions'.

Every book in this series contains

20 test papers, each of 20 questions.

This readies the students

for confidently tackling different types of questions

and prepares them adequately for

any Regional / National / International Olympiad.

www.bmatalent.com

l Key to all test papers

l Evaluation sheet for performance analysis of each test.

l for diagnosing grades in each chapter.‘Unique Diagnostic Table’

l Grid for drawing graph of your overall preparedness.

The salient features of this series :

2=E mc

8 B

MA’s O

lym

pia

d M

ock

Test 2

0-2

0 S

erie

s - SC

IEN

CE

2 2SERIES

Model Recurring Questions

www.bmata

lent.c

om

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ple)

2 · 2018-05-03 · Class 8 - Science Mock Test Paper 15 Brain Mapping Academy61 1 What is the...

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