Science & Nature Trivia

50 Science Trivia Questions

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Science trivia is a great equalizer: some questions reward the AP Bio kids, others reward the person who's obsessed with space, and everyone knows at least a handful from grade school. These 50 science trivia questions cover biology, chemistry, physics, astronomy, and earth science.

Great for a classroom warm-up, a team-building icebreaker, a quiz night, or a family game night with mixed ages. Every answer includes a short fun fact so it's more than just right vs wrong.

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Question 1
What is the chemical symbol for water?
- A.H2O
- B.O2
- C.CO2
- D.H2
Question 2
What planet is known as the Red Planet?
- A.Mars
- B.Venus
- C.Jupiter
- D.Saturn
Question 3
What is the largest organ in the human body?
- A.Skin
- B.Liver
- C.Brain
- D.Lungs
Question 4
What gas do humans breathe out?
- A.Carbon dioxide
- B.Oxygen
- C.Nitrogen
- D.Helium
Question 5
What is the speed of light?
- A.300,000 km/s
- B.150,000 km/s
- C.500,000 km/s
- D.1,000,000 km/s
Question 6
How many chromosomes do humans have?
- A.46
- B.44
- C.48
- D.23
Question 7
What is the study of earthquakes called?
- A.Seismology
- B.Geology
- C.Meteorology
- D.Volcanology
Question 8
Which element has atomic number 1?
- A.Hydrogen
- B.Helium
- C.Oxygen
- D.Carbon
Question 9
What is the process by which plants make food?
- A.Photosynthesis
- B.Respiration
- C.Digestion
- D.Osmosis
Question 10
Which is the closest star to Earth?
- A.The Sun
- B.Proxima Centauri
- C.Sirius
- D.Alpha Centauri
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Question 11
What is the pH of pure water?
- A.7
- B.0
- C.14
- D.10
Question 12
What is the coldest planet in our solar system?
- A.Neptune
- B.Uranus
- C.Pluto
- D.Mercury
Question 13
What is the largest bone in the human body?
- A.Femur
- B.Tibia
- C.Humerus
- D.Pelvis
Question 14
What is the study of stars and space called?
- A.Astronomy
- B.Astrology
- C.Cosmetology
- D.Geology
Question 15
What is the freezing point of water in Fahrenheit?
- A.32
- B.0
- C.100
- D.-32
Question 16
What organ pumps blood?
- A.Heart
- B.Liver
- C.Lungs
- D.Kidney
Question 17
What is the smallest unit of matter?
- A.Atom
- B.Molecule
- C.Cell
- D.Electron
Question 18
What force keeps us on the ground?
- A.Gravity
- B.Friction
- C.Magnetism
- D.Inertia
Question 19
What is the study of living things called?
- A.Biology
- B.Chemistry
- C.Physics
- D.Geology
Question 20
Which vitamin does sunlight help produce in skin?
- A.Vitamin D
- B.Vitamin C
- C.Vitamin A
- D.Vitamin B12
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Question 21
What is DNA short for?
- A.Deoxyribonucleic acid
- B.Dinucleic acid
- C.Dexynucleic acid
- D.Deoxynucleoside acid
Question 22
Which planet has the most moons?
- A.Saturn
- B.Jupiter
- C.Uranus
- D.Neptune
Question 23
What are the building blocks of proteins?
- A.Amino acids
- B.Fatty acids
- C.Nucleotides
- D.Sugars
Question 24
What is the primary gas in Earth's atmosphere?
- A.Nitrogen
- B.Oxygen
- C.Carbon dioxide
- D.Argon
Question 25
What is the largest planet?
- A.Jupiter
- B.Saturn
- C.Neptune
- D.Earth
Question 26
What is the powerhouse of the cell?
- A.Mitochondria
- B.Nucleus
- C.Ribosome
- D.Golgi apparatus
Question 27
What element has the symbol 'C'?
- A.Carbon
- B.Calcium
- C.Chlorine
- D.Copper
Question 28
What is the SI unit of force?
- A.Newton
- B.Joule
- C.Watt
- D.Pascal
Question 29
What is the study of rocks called?
- A.Petrology
- B.Geology
- C.Mineralogy
- D.Paleontology
Question 30
What planet has famous rings visible from Earth?
- A.Saturn
- B.Jupiter
- C.Uranus
- D.Neptune
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Question 31
What is the term for animals that eat only plants?
- A.Herbivore
- B.Carnivore
- C.Omnivore
- D.Insectivore
Question 32
How many teeth do adult humans typically have?
- A.32
- B.28
- C.30
- D.24
Question 33
What element makes up most of the Sun?
- A.Hydrogen
- B.Helium
- C.Oxygen
- D.Carbon
Question 34
What is Newton's third law?
- A.For every action there is an equal opposite reaction
- B.F=ma
- C.Objects at rest stay at rest
- D.Energy cannot be created
Question 35
What is the boiling point of water at sea level in Fahrenheit?
- A.212
- B.100
- C.180
- D.220
Question 36
What is the largest species of shark?
- A.Whale shark
- B.Great white
- C.Tiger shark
- D.Hammerhead
Question 37
What organelle contains genetic material?
- A.Nucleus
- B.Mitochondria
- C.Ribosome
- D.Chloroplast
Question 38
What is the largest artery in the human body?
- A.Aorta
- B.Pulmonary
- C.Carotid
- D.Femoral
Question 39
What kind of animal is a Komodo dragon?
- A.Lizard
- B.Snake
- C.Crocodile
- D.Amphibian
Question 40
What is the process of water changing from liquid to gas?
- A.Evaporation
- B.Condensation
- C.Sublimation
- D.Melting
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Question 41
What is the layer of gas surrounding Earth called?
- A.Atmosphere
- B.Stratosphere
- C.Ionosphere
- D.Ozone
Question 42
Which particle has a negative charge?
- A.Electron
- B.Proton
- C.Neutron
- D.Photon
Question 43
What kind of energy does the sun provide?
- A.Solar
- B.Nuclear
- C.Chemical
- D.Kinetic
Question 44
What is the human body's largest muscle?
- A.Gluteus maximus
- B.Latissimus dorsi
- C.Quadriceps
- D.Pectoralis major
Question 45
What is the study of weather called?
- A.Meteorology
- B.Astronomy
- C.Geology
- D.Climatology
Question 46
What are the three states of matter typically taught first?
- A.Solid, liquid, gas
- B.Solid, liquid, plasma
- C.Solid, gas, plasma
- D.Liquid, gas, plasma
Question 47
Which mammal lays eggs?
- A.Platypus
- B.Kangaroo
- C.Dolphin
- D.Bat
Question 48
What is the smallest planet in our solar system?
- A.Mercury
- B.Mars
- C.Venus
- D.Pluto
Question 49
Who developed the theory of relativity?
- A.Albert Einstein
- B.Isaac Newton
- C.Niels Bohr
- D.Stephen Hawking
Question 50
What is the study of fossils called?
- A.Paleontology
- B.Archeology
- C.Anthropology
- D.Geology

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