60 Fascinating Science Trivia Questions
Looking for a way to challenge your brain and have fun at the same time? Whether you’re a student, teacher, or just someone who loves a good mental workout, our science trivia questions and answers are the perfect way to test your knowledge.
From the mysteries of space to the wonders of biology, science is full of surprises. This list of science quiz questions will test your knowledge across various fields — chemistry, physics, earth science, and more.
If you’re ready to learn something new (and maybe show off a little), grab a pen and let’s get started!
Below is our complete list of science trivia questions — covering biology, chemistry, physics, and general science topics.
Answers are listed at the bottom — no peeking!
General Science Quiz Questions
- What is the chemical symbol for gold?
- How many bones are in the adult human body?
- Which planet is known as the Red Planet?
- What gas do plants absorb from the atmosphere?
- Who developed the theory of relativity?
- What is the hardest naturally occurring substance on Earth?
- How many hearts does an octopus have?
- What force keeps objects anchored to the surface of the Earth?
- What type of blood cells help fight infection?
- What is the process by which plants make their own food?
Chemistry Quiz Questions
- How many elements are in the periodic table?
- What is the boiling point of water in Celsius?
- What is the most abundant gas in the Earth’s atmosphere?
- Which metal is liquid at room temperature?
- What is the symbol for iron on the periodic table?
- What is the pH of pure water?
- What gas do humans exhale when they breathe out?
- What gas is essential for fire to burn?
- What is the smallest unit of life?
- What is the process that turns molten rock into solid rock?
Physics Quiz Questions
- What is the speed of light?
- What type of energy is produced by moving water?
- Which planet is closest to the Sun?
- What unit is used to measure force?
- What planet is famous for its rings?
- What unit is used to measure electrical resistance?
- What part of the brain controls balance?
- What is the freezing point of water in Fahrenheit?
- How long does it take for the Earth to orbit the Sun?
- What is the term for a group of atoms bonded together?
Biology Quiz Questions
- What part of the cell contains genetic material?
- What is the powerhouse of the cell?
- How many chromosomes do humans have?
- Which part of the flower produces pollen?
- What color is chlorophyll?
- Which blood type is known as the universal donor?
- What is the largest organ in the human body?
- What organ do humans use to filter blood?
- What do bees collect from flowers to make honey?
- What type of animals eat only plants?
Earth and Space Science Quiz Questions
- What do we call molten rock before it erupts from a volcano?
- What is the largest desert in the world?
- What layer of the Earth lies beneath the crust?
- How many layers are in the Earth’s atmosphere?
- What is the most common element in the universe?
- Which planet has the most moons?
- What do you call a scientist who studies fossils?
- What type of scientist studies weather?
- How many continents are there on Earth?
- What is the name of the galaxy that contains our Solar System?
Extra Science Trivia Questions to Challenge You
- What is the brightest star in Earth’s night sky?
- Which famous scientist discovered penicillin?
- What are the three states of matter?
- How many legs does a spider have?
- What is the name for a baby goat?
- What is the common name for the aurora borealis?
- Which part of the eye controls how much light enters?
- What type of rock is formed from cooled lava?
- What is the second most abundant element in Earth’s crust?
- What gas do humans need to survive?
How Did You Do?
Now that you’ve completed our 60 science trivia questions and answers, it’s time to see how many you got right!
Whether you prefer biology quiz questions or love a general science quiz with answers, hopefully this list had plenty that challenged and entertained you. Don’t worry if you missed a few — every question is an opportunity to learn something new!
Check out the answers below to see how well you did.
Do you want a different challenge? Try our 50 Sports Trivia Questions You’ll Love: Try Them Now!
Answers
General Science
- Au
- 206
- Mars
- Carbon dioxide
- Albert Einstein
- Diamond
- Three
- Gravity
- White blood cells
- Photosynthesis
Chemistry
- 118
- 100°C
- Nitrogen
- Mercury
- Fe
- 7
- Carbon dioxide
- Oxygen
- Cell
- Crystallization (or solidification)
Physics
- 299,792 km/s (approximately 300,000 km/s)
- Hydroelectric energy (kinetic energy from moving water)
- Mercury
- Newton
- Saturn
- Ohm
- Cerebellum
- 32°F
- 365 days
- Molecule
Biology
- Nucleus
- Mitochondria
- 46 (23 pairs)
- Anther
- Green
- O negative
- Skin
- Kidneys
- Nectar
- Herbivores
Earth and Space Science
- Magma
- Antarctic Desert
- Mantle
- Five
- Hydrogen
- Saturn (as of 2023)
- Paleontologist
- Meteorologist
- Seven
- The Milky Way
Extra Science
- Sirius
- Alexander Fleming
- Solid, liquid, gas
- Eight
- Kid
- Northern Lights
- Iris
- Igneous rock
- Silicon
- Oxygen
Final Thoughts
We hope you had fun trying these science trivia questions and answers! Whether you’re using this as a science quiz with answers for school or just to test your curiosity, every question helps you discover how fascinating science can be.
Come back soon for more quizzes, games, and trivia challenges — and keep exploring the world one question at a time!
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