Science GK Questions: Complete Guide for Competitive Exams

Master 1111+ Science GK Questions for SSC, UPSC, Railway, Banking, Defence, State PCS, and school-level exams. Build your scientific knowledge foundation with our comprehensive question bank.

Start Learning Now
1111+
Science Questions
26
Question Pages
10+
Science Categories
40
Questions Per Page

Complete Science GK Guide

Science GK Questions play a vital role in competitive examinations, school quizzes, interviews, and general awareness tests. From understanding the human body and chemical elements to exploring space, physics laws, and biological processes, science-based general knowledge helps build a strong intellectual foundation. Whether you are preparing for SSC, UPSC, Railway, Banking, Defence, State PCS, or school-level exams, mastering Science GK is essential.

This detailed article explains the importance of Science GK questions, key topics, examples, famous scientists, and preparation tips. You can find more high-quality GK content at https://gkmodi.com/

What Are Science GK Questions?

Science GK Questions are objective or descriptive questions that test basic understanding of Biology, Chemistry, Physics, and Astronomy. These questions usually focus on:

  • Everyday scientific phenomena
  • Fundamental laws and principles
  • Human anatomy and health
  • Chemical elements and reactions
  • Space, planets, and discoveries
  • Famous scientists and their contributions

They are designed to evaluate conceptual clarity rather than complex calculations, making them suitable for all levels of learners.

Importance of Science GK Questions

Science GK questions are important because:

  • High Weightage in Exams - Most competitive exams include 20–30% science-related questions.
  • Builds Conceptual Understanding - Topics like gravity, photosynthesis, and electricity explain real-world phenomena.
  • Useful in Daily Life - Knowledge about nutrition, health, energy, and environment is practically useful.
  • Boosts Confidence - Science GK improves logical thinking and analytical skills.
  • Foundation for Advanced Studies - Strong basics help in higher education and technical fields.

Major Categories of Science GK Questions

1. Biology GK Questions

Biology GK questions focus on living organisms, human health, plants, and animals.

Common Biology Topics:

  • Human body systems
  • Nutrition and vitamins
  • Diseases and immunity
  • Plants and photosynthesis
  • Genetics and cells

Example Biology GK Questions:

  • What is the largest organ in the human body? Answer: Skin
  • Which is the longest bone in the human body? Answer: Femur
  • What is the basic unit of life? Answer: Cell
  • Which vitamin is produced in sunlight? Answer: Vitamin D

Photosynthesis is one of the most frequently asked topics. It is the process by which green plants make food using sunlight, carbon dioxide, and water, releasing oxygen as a byproduct.

2. Chemistry GK Questions

Chemistry GK questions deal with elements, compounds, reactions, acids, bases, and everyday chemicals.

Common Chemistry Topics:

  • Periodic table
  • Chemical symbols
  • Acids, bases, and salts
  • Metals and non-metals
  • States of matter

Example Chemistry GK Questions:

  • What is the chemical symbol of gold? Answer: Au
  • What is the chemical symbol of oxygen? Answer: O
  • What is the boiling point of water? Answer: 100°C
  • Which metal is liquid at room temperature? Answer: Mercury

Knowledge of basic chemical symbols like H (Hydrogen), O (Oxygen), Na (Sodium), Fe (Iron) is crucial for exams.

3. Physics GK Questions

Physics GK questions test understanding of motion, force, energy, electricity, light, and sound.

Common Physics Topics:

  • Laws of motion
  • Gravity
  • Speed, distance, and time
  • Electricity and magnetism
  • Heat and temperature

Example Physics GK Questions:

  • Who discovered gravity? Answer: Sir Isaac Newton
  • What is the unit of force? Answer: Newton
  • What is the speed of light? Answer: Approximately 3 × 10⁸ m/s
  • Sound cannot travel through which medium? Answer: Vacuum

Gravity, discovered by Newton, explains why objects fall toward Earth. It is one of the most frequently asked physics GK topics.

4. Astronomy & Space GK Questions

Astronomy GK questions focus on planets, stars, galaxies, satellites, and space missions.

Common Astronomy Topics:

  • Solar system
  • Planets and moons
  • Stars and galaxies
  • Space scientists
  • Important space missions

Example Astronomy GK Questions:

  • Which planet is known as the Red Planet? Answer: Mars
  • Which galaxy do we live in? Answer: Milky Way
  • Which is the largest planet in the solar system? Answer: Jupiter
  • Who proposed the theory of relativity? Answer: Albert Einstein

Astronomy questions are popular because they combine science with curiosity about the universe.

Famous Scientists in Science GK Questions

Many Science GK questions revolve around scientists and their discoveries.

Key Scientists to Remember:

  • Isaac Newton – Laws of motion and gravity
  • Albert Einstein – Theory of relativity
  • Galileo Galilei – Astronomy and telescope observations
  • Thomas Edison – Electric bulb
  • Marie Curie – Radioactivity
  • Charles Darwin – Theory of evolution

Knowing the scientist along with their contribution helps score easy marks.

Frequently Asked Science GK Concepts

Some concepts appear repeatedly in exams:

  • Gravity pulls objects toward Earth
  • Skin is the largest human organ
  • Femur is the longest bone
  • Water boils at 100°C and freezes at 0°C
  • Oxygen is essential for respiration
  • Plants prepare food by photosynthesis
  • The Sun is a star, not a planet

These are must-revise points for last-minute preparation.

Science GK Questions for Competitive Exams

Science GK is asked in:

  • UPSC & State PSC
  • SSC CGL, CHSL, MTS
  • Railway Exams
  • Banking Exams (PO, Clerk)
  • Defence Exams (NDA, CDS)
  • School & College Exams

The questions are usually direct, factual, and concept-based.

How to Prepare Science GK Questions Effectively

  1. Study NCERT Basics (Class 6–10) - NCERT books are the best source for Science GK.
  2. Make Short Notes - Write formulas, facts, and definitions.
  3. Practice MCQs Daily - Solve at least 20–30 questions every day.
  4. Revise Regularly - Repetition improves retention.
  5. Use Reliable GK Websites - For updated and exam-focused content, visit https://gkmodi.com/

Benefits of Regular Science GK Practice

  • Improves exam accuracy
  • Saves time during exams
  • Builds scientific thinking
  • Enhances general awareness
  • Strengthens interview performance

Conclusion

Science GK Questions are a powerful tool to strengthen your general knowledge, exam performance, and understanding of the world around you. From biology and chemistry to physics and astronomy, these questions cover every essential scientific concept in a simple and exam-oriented manner.

Regular practice of Science GK not only helps in competitive exams but also develops curiosity and logical thinking. For more Science GK questions, MCQs, quizzes, and exam-oriented content, visit https://gkmodi.com/ and stay ahead in your preparation journey.

Science GK Question Bank

Page 1 of 26 | Showing questions 1-40 of 1111+

Use the pagination buttons below to navigate through all 1111+ questions

Why Choose Science Quiz?

1111+ Questions

Access our comprehensive collection of 1111+ carefully curated science questions across multiple disciplines.

26 Pages

Organized across 26 pages with 40 questions per page for easy navigation and learning.

Interactive Learning

Test your knowledge with our interactive answer system that provides instant feedback.

Mobile Friendly

Access our platform from any device - desktop, tablet, or mobile phone.

Frequently Asked Questions

How many questions are available in Science Quiz?

We currently have 1111+ science questions organized across 26 pages, with 40 questions per page. New questions are added regularly.

How do I navigate through all the questions?

Use the pagination buttons at the bottom of the questions section to navigate through all 26 pages. Each page contains 40 questions.

Is Science Quiz completely free to use?

Yes, Science Quiz is completely free to use. We believe in making scientific knowledge accessible to everyone without any cost barriers.

How often is new content added?

We add new questions every month to include the latest scientific discoveries and developments across various fields.

Can I use Science Quiz for exam preparation?

Absolutely! Our content is carefully curated to help with various competitive exams, school tests, and general knowledge improvement.