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Rajasthan Board Class 8th Model Question Paper 2026 Science

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Page 1

RAJASTHAN BOARD

MODEL
PAPER
2026

PRACTICE PAPERS

Download PDF

Page 2

राजस्थान राज्यशैि�क अनस
ु ंधान एवं प्रिश�ण प�, उदयपुर
प्रारंि िश�ा पूणर्ता प्रमाण पत्र प- 2026
Elementary Education Completion Certificate Exam-2026
क�ा/Class- 8
िवषय – िव�ान
Subject - Science
Sample Question Paper
समय : 2:30 घंटे/ Time 2:30 hrs iw.kkZad/M.M- 80
खण्ड- अ (SECTION-A)
वस्ित न� प्र (प्र.क1 से 8)
Objective Type questions (Q.no. 1 to 8)

नीचे िदए गए प्र�ों के िलए सही िवकल्प का चयन क�- 8X1=8
Choose the correct option for the questions given below-
प्- 1. िनम् मे से एटं ी बायोिटक नही है -
(अ) स्ट्रेप्टोमा (ब) राइजोिबयम ()
(स) ट्रे साइक्लीन (द)ए�रथ्रोमाइि
Which of the following is not an antibiotic ?
(a) Streptomycin (b) Rhizobium ()
(c) Tetracycline (d) Erythromycin
प्- 2. पंचमढी जैव आरि�त �ेत मे साल एवं जगं ली आम के पेड़ िवशेष �प से पाए जाते है । यह वनस्पि जगत मे
िकसका उदाहरण है ?
(अ) वनस्पि जात (ब) प्राणीज ( )
(स) िवशेष �ेत् स्पीशी (द) जैव मण्ड
Sal and Wild Mango are found exclusively in the Panchmarhi Biosphere Reserve. These
are the examples of in the plant kingdom.
(a) Flora (b) Fauna ( )
(c) Endemic species (d) Biosphere

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प्- 3. साइिकल के हैण्ड एवं �रम को चमकदार बनाने के िलए िकस धातु का लेपन िकया जाता है?
(अ) चाँदी (ब) ताबं ा ()
(ब) क्रोिम (द) लोहा
Which metal is coated to make the handle and rim of a bicycle shiny?
(a) Silver (b) Copper ()
(c) Chromium (d) Iron
प्- 4. िकसी आवेिशत वस्त से आवेश को पृथ्व मे भेजने क� प्रिकया ह-
(अ) भसू म्पक र (ब) िवद्य िवसजर् ()
(स) आवेशन (द) तिड़त चालक
The process of transferring charge from a charged object to the earth is called-
(a) Earthing (b) Electric discharge ()
(c) Charging (d) Lightning Conductors
प्- 5. थैिलयो मे आने वाला दधू संदिू षत नही होने का कारण है-
(अ) पाश्र�करण (ब) खाद िवषा�न ()
(स) प्रितर (द) संक्र
The milk in packets does not get contaminated due to-
(a) Pasteurisation (b) Food poisoning ()
(c) Immunity (d) Infection
प्- 6. जब िकसी व्यि के व� आग पकड़ लेते है, तो आग बझु ाने के िलए उपयु� होगा ?
(अ) पेट्रो डालना (ब) ऐल्कोहा डालना ()
(स) डीजल डालना (द) कम्बल सेढकना
When a person's clothes catch fire, what would be the most suitable way to extinguish the
fire?
(a) Pouring petrol (b) Spilling alcohol ()
(c) Spilling diesel (d) Covering with blanket

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Page 4

प्-7 ट्रेि िसग्न लाईट मे प्रक के िलए LED का उपयोग बढ़ रहा है क्योि -
(अ) यह अिधक महगं ा है । (ब) इसमे अिधक ध्या क� आवश्यकत होती है । ( )
(स) यह अिधक अविध तक कायर् करता ह । (द) यह सनु ्दर होता है।
The use of LED for traffic signal lights is increasing because:
(a) It is more expensive. (b) It requires more space. ( )
(c) It works for a longer period (d) It is beautiful
प्- 8 िव� उष्न के प्रभ से -
कथन -1 समदु का जलस्त बढ़ रहा है ।
कथन -2 िहमनद िपघल रहे है ।
(अ) के वल कथन 1 सत् है । (ब) के वल कथन 2 सत् है । ( )
(स) कथन 1 एवं 2 दोनो सत् है । (द) कथन 1 एवं 2 दोनो असत् है ।
Due to the impact of Global Warming-
Statement 1- Sea levels are rising.
Statement 2 - Glaciers are melting.
(a) Only statement 1 is true (b) Only statement 2 is true ( )
(c) Both statements-1and 2 are true (d) Both statements-1 and 2 are false.

खण्ड ब/SECTION-B
अितलघू�रात्मक प्र� (प 9 से 12)
Very short answer type Questions(Q. No. 9 TO 12)
प्- 9 पेट्र के कोई दो उपयोग िलिखए- (2)
Write any two uses of petrol.
उ�र/Ans_____________________________________________________________________________
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प्-10 अडं प्र एवं जरायुज जतुं ओ ं मे अन्त िलिखए । (2)
Write the difference between Oviparous and viviparous animals?
उ�र/Ans_____________________________________________________________________________
____________________________________________________________________________________

प्-11 जल क� िमतव्यत से उपयोग करने के िलए िसंचाई क� कौनसी िविधयाँ काम मे ले सकते है?. (2)
Which methods of irrigation can be availed to use water economically?
उ�र/Ans_____________________________________________________________________________
____________________________________________________________________________________

प्-12 ट्रैक के टायरो मे अिधक बड़े खाँचें क्यों रखे जाते ह (2)
Why larger groves are kept in tractor tyres ?
उ�र/Ans_____________________________________________________________________________
____________________________________________________________________________________

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Page 6

खण्डस / SECTION-C
लघ�ू रात्मक प्र� (प 13 से 22)
short answer type Questions(Q. No. 13 TO 22)

प्-13 िनम्िलिखत कथनो के सामने िदये गए को�क मे सत्यT) अथवा असत् (F) िलिखए- 4X1=4
Write True (T) or False (F) for the following statements -

(i) मृत वनस्पि के धीमे प्र द्वा कोयले मे प�रवतर् को प�रष्कर कहते है। [ ]
The slow process of conversion of dead vegetation into coal is called Refining . [ ]
(ii) LPG गैस का उपयोग घरो और उद्यो मे ईधन के �प मे िकया जाता है। [ ]
LPG is used as fuel in homes and Industries. [ ]
(iii) पेट्र/ डीजल बचाने के िलए गाडी बह�त तेज चलानी चािहए। [ ]
One should drive very fast to save petrol/diesel. [ ]
(iv) पेट्रोके िविभन् संघटको को पृथक करना काबरनीकरण कहलाता है। [ ]
The process of separating the various constituents of petrol is called Carbonisation. [ ]

प्-14 को�क मेंिदए गए िवकल्प मे से उिचत िवकल् का चयन कर �र� स्थान क� पिू तर क�िजए- 4X1=4
Fill in the blanks by choosing the correct option given in the bracket -

(i) 2,4-D एक________________________है। [उवर्र / खरपतवारनाशी]
2,4-D is a________________________. [fertiliser/weedicide]
(ii) _______________ तथा ____________कृ िष औजार है [कु दाली/सीड िड्र उवर्र]
____________ and ___________ are agricultural implements [Hoe/Seed drill/Fertilisers]
(iii) खाद क� अपे�ा उवर्र मे जल धारण �मता______________होती है। [कम/अिधक]
Fertiliser has water holding capacity than manure. [less / more]
(iv) िमट् मे पोषको क� पिू तर ____________ द्वा क� जाती है। [ िसच ं ाई/फसल चक्
Nutrients are replenished in the soil by_______________. [irrigation / crop rotation]

प्-15 (i) वायु मण्ड मे सल्फ और नाइट्रो के ऑक्साइ फसल एवं भवनो के िलए िकस प्रक हािनकारक है?
2 X 2 = 4
How are oxides of sulphur and nitrogen present in atmosphere harmful for crops and buildings?
उ�र/Ans_____________________________________________________________________________
____________________________________________________________________________________

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Page 7

(ii) मोमब�ी एवं कोयले के जलने मे अतं र स्प क�िजए ।
Explain the difference between burning of a candle and coal.
उ�र/Ans_____________________________________________________________________________
____________________________________________________________________________________

प्-16 (i) 'गॉयटर रोग' से क्य अिभप्र है? 2 X2 = 4
What do mean by 'Goitre disease?
उ�र/Ans_____________________________________________________________________________
____________________________________________________________________________________
(ii) िकशोरावस्थ मे लड़को क� आवाज भारी होने का क्या कार है?
What is the reason for boys voice becoming heavy during adolescence?
उ�र/Ans_____________________________________________________________________________
____________________________________________________________________________________

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Page 8

प्-17 (i) घषर्ण बल एव ग�ु त्वाकषर बल मे अन्त िलिखए । 2X2=4
Write the difference between Frictional force and Gravitational force
उ�र/Ans__________________________________________________________________________________
_______________________________________________________________________________
_________________________________________________________________________________________
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(ii) वायुमण्डली दाब को सिचत समझाइए ।
Explain Atmospheric Pressure with the help of a labelled diagram.
उ�र/Ans

प्-18 कॉलम-1 एवं कॉलम-2 का िमलान क�िजए। 4 X1 = 4
Match column-1 with column-2.

कॉलम-1/ column-1 कॉलम-2/ column-2
(i) अमीबा/Amoeba (a) िशशु का जन्/Birth of a baby
(ii) हाइड्रHydra (b) कायान्तर/ Metamorphosis
(iii) मेंढकFrog (c) िद्वखण/ Binary fission
(iv) जरायुज/Viviparous (d) मुकुलन/ Budding
(e) परखनली िशश/ु Test-tube baby

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प्-19 नींबूका रस िवद्य का चालक होता है। प्रय द्वा समझाइए । 4
Lemon juice is a conductor of electricity Explain ther with the help of an experiment
उ�र/Ans__________________________________________________________________________________
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प्-20 [ िनवार्, ठोस, द्र गैस ] 4X1 =4
उ� माध्यम को ध्वि के संचरण के अवरोही क् मे व्यविस् क�िजए।
[ Vaccum, Solid, Gas, Liquid]
Arrange the above given mediums in descending order of propagation of sound.
उ�र/Ans__________________________________________________________________________________
_______________________________________________________________________________
_________________________________________________________________________________________
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प्-21 आप भक ू म् आने पर घर के बाहर है तब आप अपना बचाव कै से कर सकते है? इसका तकर् सिहत उ�रदीिजए।
You are outside your home during an earthquake, how can you protect yourself? Give a
answer with reason. 4
उ�र/Ans__________________________________________________________________________________
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प् -22. आधिु नक जीवन मे परावतर् और अपवतर्न के िसद्दान्तो का प्रय प्रक हमारी सिु वधाओ ं को बढ़ाता है ?
तकर् सिहत उ�रदीिजए। 2 +2 = 4
How does the application of the principles of reflection and refraction enhance our
convenience in modern life? Give a answer with reason.
उ�र/Ans__________________________________________________________________________________
_______________________________________________________________________________
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खण्डद / SECTION-D
िनबंधात्म प्र� (प् 23 से 25)
Essay type Questions (Q. No. 23 TO 25)
प् -23 (i) यिद क�ल के नक�ल
ु े भाग को चपटा बना िदया जाए तो बल और दाब पर क्य प्रभ होगा? िलिखए ।
If the pointed part of a nail is made flat, what will be the effect on force and pressure?
Write it. (2)
उ�र/Ans__________________________________________________________________________________
_________________________________________________________________________________________
_________________________________________________________________________________________

_________________________________________________________________________________________
_________________________________________________________________________________________

_________________________________________________________________________________________
_________________________________________________________________________________________

_________________________________________________________________________________________

(ii) वायुयान क� आकृ ित प�ी के समान क्यों बनाई जाती (4)
Why is the shape of an airplane made like a bird?
उ�र/Ans__________________________________________________________________________________
_______________________________________________________________________________
_________________________________________________________________________________________
________________________________________________________________________
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Page 12

(iii) िदए गए िचत्र को नामांिकत क�िज। (2)
Label the given diagram.

अथवा/or

(i) ऐसी दो प�रिस्थितयोको िलिखए जो यह दशार्त है िक बल लगाने के िलए कम से कम दो वस्ुओ
त मे अन्योन
िक्र होनी आवश्य है। (2)
Write two situations which show that for a force to be applied, there must be
interaction between at least two objects.
उ�र/Ans__________________________________________________________________________________
_______________________________________________________________________________
_________________________________________________________________________________________
________________________________________________________________________
(ii) घषर् हमारा िमत है। उदाहरण सिहत समझाइए । (4 )
Friction is our friend. Explain with examples.
उ�र/Ans__________________________________________________________________________________
_______________________________________________________________________________
_________________________________________________________________________________________
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Page 13

(iii) ऐसी दो िक्रयाए िलिखए िजनसे ध् प्रदू होता हैं । (2)
Write two activities which cause noise pollution.
उ�र/Ans__________________________________________________________________________________
_______________________________________________________________________________
_________________________________________________________________________________________
________________________________________________________________________

Q24 (i) “पयार्वर के शिु दकरण के िलए स�ू मजीवो क� महत्वपूणर् िमका होती है”। कथन क� व्याख् क�िजए ।(4)
“Microorganisms play an important role in purifying the environment”. Describe the
given statement
उ�र/Ans_____________________________________________________________________________
____________________________________________________________________________________
(ii) िनयिमत एवं िवस�रत परावतर् का पृ� क� प्रकृ के आधार पर सिचत वणर् क�िजए- (4)
With the help of a diagram, describe Regular and Diffused Reflection on the basis of the
nature of the surface.
उ�र/Ans_____________________________________________________________________________
____________________________________________________________________________________

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Page 14

अथवा/ OR
(i) "राइजोिबयम जीवाणु एवं िवनाइट्करण जीवाणु परस्प िवपरीत कायर करते है" कथन का िव�ेषण
क�िजए- (4)
"Rhizobium bacteria and denitrifying bacteria perform opposite functions." Analyze
the statement.
उ�र/Ans_____________________________________________________________________________
____________________________________________________________________________________
_________________________________________________________________________________________
_________________________________________________________________________________
(ii) मानव नेत क� संरचना मे प�रता�रका एवं �ि� पटल(रे िटना) क� अविस्थि का देखने के संदभर मे महत्वपूणर् ।
िव�े षण क�िजए ? 4
In the structure of the human eye, the position of the iris and retina is important in
terms of vision. Analyze it.
उ�र/Ans_____________________________________________________________________________
____________________________________________________________________________________
____________________________________________________________________________________
____________________________________________________________________________________
____________________________________________________________________________________

Q.25 (i) जैव मण्ड आरि�त �ेत मे वाहन चलाते समय आपको िकन-िकन बातो का ध्या रखना चािहए ? िलिखए
What things should be kept in mind while driving in a Biosphere Reserve? Write 6
उ�र/Ans_____________________________________________________________________________
____________________________________________________________________________________

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(ii) मानव मेंअन्तस्राग्रिन् क� िस्थि को िचत मेंिन�िपत क�िजए। (कोई दो ) 2
Illustrate the location of eudocrine glands found in human body in the given diagram.
(Any two)
उ�र/Ans

अथवा/ OR
(i) वन्यजी अभ्यारण के भ्रमके दौरान आवश्य बातो हेतु �परे खा का िनमार् क�िजए । 6
Write an outline of the things that are important to keep in mind while visiting a
Wildlife Sanctuary.
उ�र/Ans_____________________________________________________________________________
____________________________________________________________________________________

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Page 16

(ii) िकशोरावस्थ के िलए आवश्य सतुं िलत आहार को सचू ीबद क�िजए । 2
Write a list of essential balanced diet for Adolescence.
उ�र/Ans_____________________________________________________________________________
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Page 18

Study Materials
Notes

Model Papers Class 6 Notes

Sample Papers Class 7 Notes
Half Yearly Sample Papers Class 8 Notes

Class 9 Notes
Important Resources
Class 10 Notes
Periodic Table
Class 11 Notes
Writing Skills / Formats

Maps of India / World Class 12 Notes

Books and Solutions

NCERT Books
NCERT Book Solutions
HC Verma Chapter Wise Solutions
RD Sharma Solutions
CGBSE Solutions

Document Details

Board / OrgRajasthan Board
ExamClass 8
TypeSample Paper
Pages18
Updated24 Sep 2026