Science Trivia Questions and Answers

Challenge your scientific knowledge with 110+ timeless trivia questions across biology, chemistry, physics, and more.

Facts Reader|Last checked 4 November 2026

In short: It's designed for casual learners, educators, and trivia enthusiasts seeking to test and expand their scientific knowledge. The questions are timeless, focusing on established facts and concepts that remain relevant over time.

A parent entertaining your kids, or a trivia lover testing your knowledge, this collection offers engaging and educational content.

Science trivia is an excellent way to make learning fun and interactive. This set includes questions on fundamental concepts, historical discoveries, and intriguing phenomena, ensuring a mix of challenge and accessibility for different age groups and knowledge levels.

To get the most out of this set, consider the composition of your group and adjust the difficulty as needed. Use the groupings and tips provided to create rounds that cater to your audience, and don't hesitate to delve deeper into topics that spark interest.

Biology and Human Body

This group covers questions about living organisms, ecosystems, and the human body.

Biology and Human Body
  1. Which gland regulates metabolism in the human body?

    Answer: The thyroid gland

  2. What is the scientific name for the voice box?

    Answer: The larynx

  3. What is the scientific name for the thigh bone?

    Answer: The femur

  4. Which hormone is known as the 'stress hormone'?

    Answer: Cortisol

  5. What is the primary function of the lymphatic system?

    Answer: To transport lymph and fight infection

  6. Which part of the human body contains the most bones?

    Answer: The hand

  7. What is the scientific name for the collarbone?

    Answer: The clavicle

  8. What is the scientific name for the kneecap?

    Answer: The patella is the kneecap.

  9. Which part of the human body produces bile?

    Answer: The liver produces bile.

  10. What is the function of the alveoli in the lungs?

    Answer: To facilitate gas exchange.

  11. Which organ stores urine before it is expelled?

    Answer: The bladder stores urine.

  12. What is the function of the villi in the small intestine?

    Answer: To increase surface area for nutrient absorption.

  13. What is the scientific name for the breastbone?

    Answer: The sternum is the breastbone.

  14. Which organ produces bile and detoxifies chemicals?

    Answer: The liver produces bile and detoxifies chemicals.

  15. What is the function of the epiglottis?

    Answer: To prevent food from entering the trachea.

  16. What is the scientific name for the upper arm bone?

    Answer: The humerus is the upper arm bone.

  17. Which organ secretes enzymes and hormones?

    Answer: The pancreas secretes enzymes and hormones.

  18. What is the function of the cilia in the respiratory tract?

    Answer: To trap dust and move mucus.

  19. Which part of the human body is responsible for maintaining balance?

    Answer: The inner ear maintains balance.

  20. What is the scientific name for the lower jaw bone?

    Answer: The mandible is the lower jaw bone.

  21. Which gland secretes growth hormone in humans?

    Answer: The pituitary gland

  22. Which organ absorbs water and forms feces?

    Answer: The large intestine

  23. What is the function of the diaphragm in respiration?

    Answer: To aid in the breathing process

  24. What is the fluid that surrounds and cushions the brain?

    Answer: Cerebrospinal fluid surrounds and cushions the brain.

  25. Which part of the human body converts food into energy?

    Answer: Mitochondria convert food into energy in cells.

  26. What is the scientific name for the shoulder blade?

    Answer: The scapula is the shoulder blade.

  27. What is the function of the retina in the eye?

    Answer: The retina converts light into neural signals.

Chemistry and Physics

Focusing on the principles of matter, energy, and the interactions between them.

Chemistry and Physics
  1. What is the most abundant element in the universe?

    Answer: Hydrogen

  2. What type of bond forms between metal and non-metal atoms?

    Answer: Ionic bond

  3. What is the state of matter with a fixed volume but no fixed shape?

    Answer: Liquid

  4. What is the force that attracts objects toward the center of the Earth?

    Answer: Gravity

  5. What is the formula for carbon dioxide?

    Answer: CO2

  6. What is the law of conservation of mass?

    Answer: Mass is neither created nor destroyed in a chemical reaction

  7. What is the process of liquid changing into a solid called?

    Answer: Freezing

  8. What is the SI unit of force?

    Answer: Newton

  9. Which gas is essential for respiration and combustion?

    Answer: Oxygen

  10. Which law states that the pressure of a gas is inversely proportional to its volume?

    Answer: Boyle's Law

  11. What is the SI unit of temperature?

    Answer: Kelvin

  12. Which element has the symbol 'He'?

    Answer: Helium

  13. What is the study of matter and its interactions with energy and itself called?

    Answer: Chemistry

  14. What is the study of the behavior of matter and energy in the presence of fields called?

    Answer: Physics

  15. What is the term for a material's resistance to flow?

    Answer: Viscosity

  16. What is the positively charged particle in an atom called?

    Answer: Proton

  17. What is the term for the amount of space an object occupies?

    Answer: Volume

  18. What is the term for the measure of an object's resistance to acceleration?

    Answer: Mass

  19. What is the term for the emission of electrons from a heated surface?

    Answer: Thermionic emission

  20. Which particle in an atom has no electric charge?

    Answer: Neutron

Astronomy and Earth Science

Explore the vastness of space, planets, and the geological features of Earth.

Astronomy and Earth Science
  1. What is the second planet from the Sun?

    Answer: Venus

  2. Which planet is famous for its prominent ring system?

    Answer: Saturn

  3. Which planet is known for its blue color due to methane?

    Answer: Neptune

  4. Which planet is known for its extreme tilt and faint ring system?

    Answer: Uranus

  5. What is the term for the rocky outer layer of Earth?

    Answer: Crust

  6. Which layer of Earth is mainly composed of iron and nickel?

    Answer: Core

  7. Which layer of Earth lies between the crust and the core?

    Answer: Mantle

  8. What is the term for the molten rock beneath Earth's surface?

    Answer: Magma

  9. Which type of rock is formed from cooled lava?

    Answer: Igneous

  10. What is the term for the study of rocks and minerals?

    Answer: Geology

  11. What is the term for the gaseous envelope surrounding Earth?

    Answer: Atmosphere

  12. What is the term for the boundary between Earth's crust and mantle?

    Answer: Mohorovičić discontinuity

  13. What is the term for the study of the universe's origin and structure?

    Answer: Cosmology

  14. What is the term for the study of the physical properties of the Earth?

    Answer: Geodesy

  15. What is the term for the study of the chemical composition of Earth?

    Answer: Geochemistry

  16. What is the term for the path of an object around another object in space?

    Answer: Orbit

  17. What is the term for the point in Earth's orbit farthest from the Sun?

    Answer: Aphelion

  18. What is the term for the study of the Earth's atmosphere and weather?

    Answer: Meteorology

  19. What is the term for the solid, outermost layer of Earth?

    Answer: Lithosphere

  20. What is the term for the study of the Earth's magnetic field and magnetic phenomena?

    Answer: Geomagnetism

  21. What is the term for the study of the Earth's past life forms through fossils?

    Answer: Paleontology

  22. What is the term for the study of the Earth's landforms and their processes?

    Answer: Geomorphology

  23. Which layer of Earth is known for its plasticity and semi-solid behavior?

    Answer: Asthenosphere

  24. What is the term for the study of the Earth's past climates?

    Answer: Paleoclimatology

  25. What is the term for the study of the Earth's interior heat and its effects?

    Answer: Geothermics

  26. What is the term for the study of the moon and its features?

    Answer: Selenology

  27. What is the term for the study of the Earth's oceans and seas?

    Answer: Oceanography

  28. What is the term for the study of the Earth's water cycle and its distribution?

    Answer: Hydrology

  29. What is the term for the study of earthquakes and seismic waves?

    Answer: Seismology

  30. What is the term for the study of the Earth's ancient environments through rock layers?

    Answer: Stratigraphy

Historical Scientific Discoveries

Learn about pivotal moments and figures that shaped our understanding of science.

Historical Scientific Discoveries
  1. What is the term for the study of the interaction between organisms and their environment?

    Answer: Ecology

  2. What is the term for the study of the structure and function of cells?

    Answer: Cell Biology

  3. What is the term for the study of the classification and relationships of organisms?

    Answer: Taxonomy

  4. What is the term for the study of the chemical processes within living organisms?

    Answer: Biochemistry

  5. What is the term for the study of the nervous system and its functions?

    Answer: Neuroscience

  6. What is the term for the study of the structure of organisms and their parts?

    Answer: Anatomy

  7. What is the term for the study of the origin and evolution of life?

    Answer: Evolutionary Biology

  8. What is the term for the study of the microscopic structure of tissues?

    Answer: Histology

  9. What is the term for the study of the functions and diseases of the kidney?

    Answer: Nephrology

  10. What is the term for the study of the skeletal system and its diseases?

    Answer: Orthopedics

  11. What is the study of animal life called?

    Answer: Zoology

  12. What is the term for the study of fungi?

    Answer: Mycology

  13. What is the study of microorganisms called?

    Answer: Microbiology

  14. What is the study of reptiles and amphibians called?

    Answer: Herpetology

  15. What is the study of the properties and behavior of light called?

    Answer: Optics

  16. What is the term for the study of heat and its relation to energy and work?

    Answer: Thermodynamics

  17. Who discovered the law of conservation of energy?

    Answer: James Prescott Joule

  18. In what year did Albert Einstein publish his theory of general relativity?

    Answer: 1915

  19. Who discovered the electron in 1897?

    Answer: J.J. Thomson

  20. In what year was the first successful human heart transplant performed?

    Answer: 1967

  21. Who proposed the theory of continental drift in 1912?

    Answer: Alfred Wegener

  22. Who discovered the structure of DNA in 1953?

    Answer: Watson and Crick

Miscellaneous Science Facts

A collection of intriguing and lesser-known scientific facts and phenomena.

Miscellaneous Science Facts
  1. What is the study of the physical and chemical processes of the atmosphere called?

    Answer: Atmospheric Science

  2. What is the study of the physical and chemical properties of minerals called?

    Answer: Mineralogy

  3. What is the term for the study of the motion and behavior of projectiles?

    Answer: Ballistics

  4. What is the term for the study of the interaction of electric currents and magnetic fields?

    Answer: Electromagnetism

  5. What is the study of the immune system called?

    Answer: Immunology

  6. What is the study of the behavior and mental processes of animals called?

    Answer: Animal Behavior

  7. What is the study of the structure and composition of rocks called?

    Answer: Petrology

  8. What is the study of the chemical processes in the Earth's hydrosphere called?

    Answer: Hydrochemistry

  9. What is the study of the chemical processes in stars and interstellar space called?

    Answer: Astrochemistry

  10. Who proposed the theory of relativity?

    Answer: Albert Einstein

  11. Who discovered the principle of buoyancy?

    Answer: Archimedes

  12. Who discovered the law of radioactive decay?

    Answer: Ernest Rutherford

Running the Game: Structuring Your Trivia Session

For a balanced game, aim for 5-10 questions per round, which typically takes 10-20 minutes depending on discussion and pacing. Use a point system where each correct answer earns one point, and consider adding bonus points for more challenging questions.

In case of a tie, prepare a few extra difficult questions or implement a sudden-death round where the first correct answer wins. This keeps the game exciting and ensures a clear winner.

Encourage team play by forming groups of 3-5 participants, which fosters collaboration and makes the game more engaging.

Choosing Questions for Your Audience

For younger players or beginners, start with the 'Biology and Human Body' and 'Miscellaneous Science Facts' groups, as they cover more familiar and less technical topics.

Mixing questions from different groups can cater to mixed-age groups or varied knowledge levels, ensuring everyone stays engaged.

Reading Questions Aloud: Tips for Engagement

When reading questions aloud, enunciate clearly and pace yourself to allow players time to think. Repeat the question if needed, especially if players seem unsure.

Handle near-miss answers by acknowledging the effort and clarifying the correct response, which keeps the game positive and educational.

Encourage quieter players by directly asking if they have an answer or inviting them to contribute to discussions, ensuring everyone feels included.

Printing and Playing Offline: Tips for Classroom or Car

Print the question sets on paper and distribute them to participants, allowing them to write down their answers. This method works well in classrooms or during car trips.

Hide the answers until the end of each round to maintain the element of surprise and prevent cheating. Use a separate sheet to keep track of scores.

For classroom settings, consider dividing the class into teams and projecting questions for a more interactive experience.

Adjusting Difficulty: Making the Game Easier or Harder

To make the game easier, remove multiple-choice options or provide hints for more challenging questions. This helps beginners or younger players feel less intimidated.

For added difficulty, impose a time limit for answering or require participants to explain their answers, testing both knowledge and reasoning.

Allowing team conferring or offering bonus points for correct explanations can increase the challenge and encourage deeper engagement with the material.

Question Selection: Ensuring Timeless and Accurate Content

The questions on this page exclude topics that change over time, such as recent discoveries or controversial theories, to ensure the content remains accurate and relevant.

We also avoid questions with more than one defensible answer, focusing instead on well-established facts and concepts. This approach guarantees that the trivia is both educational and fair.

By selecting questions based on these criteria, we provide a reliable and consistent resource for science trivia enthusiasts.

The Evolution of Science Trivia: A Historical Perspective

Science trivia has its roots in the early 20th century when public lectures and radio shows began to popularize scientific knowledge. These early formats often focused on basic scientific facts and groundbreaking discoveries of the time, such as the structure of the atom or the theory of relativity.

The 1960s and 70s saw a surge in science-themed game shows and board games, which further cemented the role of trivia in science education. Shows like 'The $64,000 Question' and 'Jeopardy!' introduced science categories, making trivia a mainstream entertainment option.

Today, science trivia continues to evolve with the integration of technology. Online platforms and apps offer interactive experiences, while virtual reality is beginning to offer immersive trivia environments. This evolution reflects the growing importance of science literacy in modern society.

Classifying Difficulty: What Makes a Science Trivia Question Easy or Hard?

An easy science trivia question typically covers well-known facts or common knowledge topics, such as the number of planets in the solar system or the chemical formula for water. These questions are straightforward and require minimal critical thinking.

Moderate difficulty questions often involve understanding basic scientific principles and applying them to simple scenarios. For example, asking how gravity affects objects of different masses falls into this category. These questions require some reasoning but are still accessible to a general audience.

Questions about quantum mechanics, genetic coding, or the intricacies of cellular respiration are more challenging. They often require specialized knowledge or the ability to connect multiple pieces of information.

Using Science Trivia in a Classroom: Engaging Students with Interactive Learning

Incorporating science trivia into classroom activities can transform traditional learning into an interactive and engaging experience. Begin by selecting questions that align with the curriculum, ensuring the content reinforces key concepts being taught.

Consider organizing the class into teams to encourage collaboration and healthy competition. Use a point system to track progress and offer small rewards for winners, such as extra credit or small tokens. This approach not only makes learning fun but also promotes teamwork and critical thinking.

To maintain engagement, vary the format by including visual aids, videos, or demonstrations related to the trivia questions. This multisensory approach caters to different learning styles and helps reinforce the material more effectively.

Frequently asked questions

What is the best way to use these science trivia questions?

These questions can be used in various settings, from classroom activities to family game nights. For classrooms, consider dividing students into teams and projecting questions. For family game nights, print the questions and distribute them to players.

How can I make the trivia more challenging for advanced players?

For advanced players, increase the difficulty by imposing a time limit for answers, requiring detailed explanations, or including more questions from the 'Chemistry and Physics' and 'Astronomy and Earth Science' groups.

Are these questions suitable for children?

Yes, the questions are designed to be family-friendly and accessible to children. The 'Biology and Human Body' and 'Miscellaneous Science Facts' groups are particularly suitable for younger audiences.

Can I use these questions for a school project?

Absolutely, these questions are a great resource for school projects. They cover a wide range of topics and can be adapted for different age groups and knowledge levels.

How should I handle disputed science trivia answers?

If a dispute arises, refer to the provided answers and explanations. Encourage players to discuss and learn from the correct response, turning the situation into a learning opportunity.

What should I do if I don't know a science trivia answer?

It's okay not to know all the answers. Use the questions as a learning opportunity to research and discover new information. Encourage participants to explore the topic further.

Can I modify the questions for my own use?

Yes, feel free to modify the questions to better suit your audience or specific needs. Just ensure that the core scientific concepts remain accurate.

How long does a typical trivia session last?

A typical session with 5-10 questions per round can last between 20-40 minutes, depending on the number of rounds and the pace of the game.

What if I want to create my own science trivia questions?

Start by identifying key topics and concepts you want to cover. Ensure the questions are clear, accurate, and have a single correct answer. Use reputable sources for fact-checking.

How do I keep the game engaging for all participants?

Mix questions from different groups to cater to varied interests and knowledge levels. Encourage team play and discussion, and consider offering small prizes or rewards for the winning team.

How do I handle it when nobody knows the answer to a question?

If the group is unable to answer a question, provide hints or break the question into smaller parts to guide them toward the solution. Alternatively, offer the option to 'pass' and revisit the question later. This keeps the game flowing and maintains engagement.

What are some strategies for building my own science trivia questions?

Start by identifying key topics or themes you want to cover. Use reliable sources like textbooks, scientific journals, or reputable websites to gather accurate information. Aim for a mix of fact-based and application questions to ensure a balanced level of difficulty. Test your questions with a small group to gauge their effectiveness and make adjustments as needed.

How can I adapt science trivia for a virtual setting?

For virtual trivia, use platforms like Zoom or Google Meet to host the session. Share questions on screen and encourage participants to submit answers via chat or private message. Incorporate interactive elements like polls or quizzes to keep the audience engaged. Consider using breakout rooms for team-based activities to mimic the experience of in-person collaboration.

What are the top 10 science quiz questions?

A “top 10” set would be a selection of ten questions from across those sections, but the page does not identify a ranked top ten.

Can you give me 20 interesting scientific facts?

The page provides 111 science-trivia questions in five sections, offering a large pool from which to choose 20 interesting facts or fact-based answers. The page summary does not specify which individual questions make up those 20, so an exact set cannot be confirmed from it.

What are the top 10 trivia questions?

A science-focused top-ten quiz can be drawn from this page’s 111 questions across five sections. However, the page does not provide a ranking or a separately designated set of top 10 trivia questions.