CBSE Class 8 Science Question Paper Set 18

Find CBSE Class 8 Science Question Paper Set 18 right below. We provide standard Class 8 Science previous year question papers packed with detailed solutions for the 2026-27 term, following guidelines set by CBSE, NCERT, and KVS. Practice these tests to build confidence and score better marks.

Solved Science Question Papers for Class 8

Want to know how school exams are structured? Solving these Class 8 Science question papers helps you learn the exact marking scheme and exam format. Practice under a timer to boost your speed and accuracy. Grab the full CBSE Class 8 Science Question Paper Set 18 to start checking your progress right now.

Science Question Papers for Class 8 (2026-27)

CBSE Class 8 Science Question Paper Set R.Revision worksheets, Sample papers, Question banks and easy to learn study notes for all classes and subjects based on CBSE and NCERT guidelines. Students and parents can download free a collection of all study material issued by various best schools in India. The study material has been carefully compiled by the best teachers in India. The students should practice the questions database to get better marks in examination. Please refer to other links for free download of high quality study material. Based on CBSE and NCERT guidelines. Based on the same pattern as released by CBSE every year. Study material for final/ term/ SA1/ SA2 Examinations conducted by various schools affiliated to Central Board of Secondary Education (CBSE) in India and abroad. CBSE Study material has been compiled to help students preparation which will helps the students to concentrate more in areas which carry more marks.

Q.I Multiple choice questions - 

1. Cellulose is made up of a large number of ................... units -

(a) amide (b) amino (c) glucose (d) sucrose.

2. Which of the following is the most reactive metal ?

(a) Iron (b) Zinc (c) Copper (d) potassium

3. Relationship beween a biotic community and an abiotic environment is called -

(a) Biodiversity (b) Ecosystem (c) Symbiosis (d) Survival

4. Which of the following is not an inflammable substance ?

(a) LPG (b) Kerosene (c) Dry grass (d) wood

5. Rhizobium bacteria is found in

(a) Leaves (b) Stem (c) Root-nodules (d) flowers

6. The process which ensures continuity of life on the earth is -

(a) Respiration (b) Excretion (c) Reproduction (d) Digestion

7. The carrier of genetic characteristics from the parents to the off spring .............

(a) Genes (b) Mitrochondria (c) Ribosomes (d) Reticulum

8. The remains of the dead plants and animals burried under the earth are called -

(a) fossils (b) fuels (c) swamps (d) coalgas.

9. Lactobacillus bacteria help to make

(a) bread (c) pastries (c) cake (d) curd

II. Very short answer questions - 

1. What are weedicides ? Name one weedicide.

2. Name any two antibiotics.

3. Name any two examples of thermoplastics.

4. What happens when copper versel is exposed to maist air for a long time ?

5. What is meant by 'refining of petroleum ?

6. What is meant by green house effect ?

7. What is species ? Give one example.

8. What is biodiversity ?

9. Name two animals each. which reproduce by -

(a) arexual mode (b) sexual mode

10. What are the functions of testes ?

III. Short answer type questions - (any 6) 

1. What are fertillizers ? Name any two fertillizers.

2. What are eukanyotic cells ? Name any two eukaryotes.

3. What are national parks ? Name any two national parks in India.

4. Name any two diseases each caused by -

\(a) Bacteria and (b) viruses in cows and buffaloes.

5. Write any two uses of plastics.

6. Why gold and silver are used for making jewellery ?

7. How can we conserve fossil fuels ?

8. What is meant by spontaneous combustion ?

Give two example of spontaneous combustion. 

Please refer to attached file for CBSE Class 8 Science Question Paper Set R.

Download CBSE Question Papers: Class 8 Science

Previous Year Question Papers: Class 8 Science

To understand the types of questions asked in past examinations, it is very important for Class 8 students to solve the CBSE Class 8 Science Question Paper Set 18 provided above. You can easily download these past papers for Class 8 Science in PDF format for the last 10 years. By practicing these actual exam questions you will gain an understanding of the difficulty level and the variety of topics covered over the years. By solving these Previous Year Papers (PYPs) you will understand both descriptive and MCQ questions in your final tests.

Master Marking Schemes and Time Management

Consistent practice using the CBSE Class 8 Science Question Paper Set 18 is a proven strategy to elevate your Class 8 Science performance. These documents clarify the official marking scheme and framework followed by the CBSE. Simulating real test conditions at home helps hone your time management abilities, ensuring you finish your Science paper comfortably within the official time limit.

Offline Accessibility and Complete Revision

Downloading the CBSE Class 8 Science Question Paper Set 18 ensures you can revise offline without requiring constant internet access. These curated collections provide excellent practice for numerical challenges and standard answer formatting. Following your practice, compare results with professional teacher solutions alongside our recommended Class 8 Science sample papers and MCQ assessments for thorough revision.

FAQs

Where can I download the official PDF for CBSE Class 8 Science Question Paper Set 18?

The CBSE Class 8 Science Question Paper Set 18 is available for download on StudiesToday.com. It includes complete set with all sections so that Class 8 students can practice with the exact same paper that came in the CBSE exams.

Are the solutions for CBSE Class 8 Science Question Paper Set 18 based on the official CBSE marking scheme?

Yes, the solutions for CBSE Class 8 Science Question Paper Set 18 are prepared by subject matter experts as per official marking scheme. Class 8 students will understand the structure of answers and 'step-marks' methodology Science.

How does solving CBSE Class 8 Science Question Paper Set 18 help in preparing for the 2026 exams?

Solving previous year papers like CBSE Class 8 Science Question Paper Set 18 is important to understand repeat themes and question difficulty levels of Science. It helps Class 8 students to test their time management skills too.

Can I access CBSE Class 8 Science Question Paper Set 18 in different languages?

Yes, where applicable, CBSE Class 8 Science Question Paper Set 18 is available in both English and Hindi mediums. All students from Class 8 can access Science study material in their preferred language.

Is there a charge to download the CBSE Class 8 Science solved papers?

No, all previous year question papers on StudiesToday, including CBSE Class 8 Science Question Paper Set 18, are provided free of charge in mobile-friendly PDF.