Science
20 science quiz questions
Twenty science questions in four rounds: living things, chemistry, physics, and Earth and space. Pitched at a general pub-quiz level, with nothing you’d need a degree for.
A shortened quiz, to play solo
20 questions to play on your own, online. Type your answers and get your score at the end. No PDFs and no group play.
Playing with other people? Get the full quiz
- 50 questions, none of them on this page
- Question and answer PDFs, with answer sheets and tie-breakers
- Host it live: a private game room, everyone answers on their phones
- Questions
- 20
- Rounds
- 4
- Difficulty
- Medium & Easy
Round 01
Living things
- Difficulty: medium
Which part of a cell is known as its powerhouse?
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The mitochondria
Also accept: Mitochondria, Mitochondrion
- Difficulty: easy
How many chambers does the human heart have?
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Four
Also accept: 4
- Difficulty: medium
Which is the largest organ inside the human body?
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The liver
Also accept: Liver
- Difficulty: easy
Which scientist set out the theory of evolution by natural selection?
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Charles Darwin
Also accept: Darwin
- Difficulty: medium
Which pigment makes plants green?
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Chlorophyll
Round 02
Chemistry
- Difficulty: medium
What is the chemical symbol for iron?
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Fe
- Difficulty: medium
What is the pH of pure water?
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7
Also accept: Seven
- Difficulty: easy
Which gas puts the fizz in fizzy drinks?
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Carbon dioxide
Also accept: CO2
- Difficulty: medium
What is the chemical symbol for sodium?
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Na
- Difficulty: easy
Which gas makes party balloons float?
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Helium
Round 03
Physics
- Difficulty: medium
What is the unit of electrical resistance?
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The ohm
Also accept: Ohm, Ohms
- Difficulty: medium
In the equation E = mc², what does the "c" stand for?
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The speed of light
Also accept: Speed of light
- Difficulty: medium
What is the unit of force?
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The newton
Also accept: Newton, Newtons
- Difficulty: medium
What kind of energy does a moving object have?
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Kinetic energy
Also accept: Kinetic
- Difficulty: medium
Which piece of glass splits white light into the colours of the rainbow?
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A prism
Also accept: Prism
Round 04
Earth and space
- Difficulty: medium
What is molten rock called while it is still under the ground?
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Magma
It is only called lava once it reaches the surface.
- Difficulty: medium
Which layer of the atmosphere shields us from most of the Sun's ultraviolet rays?
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The ozone layer
Also accept: Ozone, Ozone layer
- Difficulty: easy
Which scale has traditionally been used to measure the strength of earthquakes?
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The Richter scale
Also accept: Richter
- Difficulty: medium
What does a light year measure?
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Distance
- Difficulty: medium
What was the name of the first artificial satellite, launched in 1957?
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Sputnik
Also accept: Sputnik 1
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Now play it with everyone
That was the free solo version. The Science Quiz has 50 brand-new questions in 5 rounds, with question and answer PDFs to print, or host it live with everyone on their phones. Instant download.
Solo is free. Playing with a group? That’s the full quiz.
Free version · this page
A shortened quiz, solo only
20 questions to play on your own, online
- 20 questions, marked for you
- Your score, answers and explanations at the end
- No PDFs: nothing to print or hand round
- No group hosting or live game room
- No team answer sheets or tie-breakers
- Anyone can look these questions up
Full version · £4.99
Everything you need to host a group
The Science Quiz
- A longer quiz: 50 questions (this page has 20), none of them on this site
- Host pack with questions and answers (PDF)
- The human body, chemistry, physics, space and great discoveries
- Team answer sheets and scoresheet
- Two tie-breakers
- Host it live for 30 days: a private game room with a join code, everyone answers on their phones, live leaderboard, up to 100 players
- For family and friends · instant download, and it never expires
Quiz Box Unlimited
Every quiz. One price.
- All 24 quiz packs (1,680 questions) to download, plus every new one
- Host them online: players join on their phones with a QR code or link
- Play any quiz solo, game-show style
- Cancel any time
Spotted a mistake, or got a question you'd like to see? Tell us
How to run it
- Each round ends with a harder one. Make the last question worth two points.
- Ask teams to give the units with any number answer, for a bonus.
- For children, try the science quiz for kids instead: same idea, gentler questions.