Biology & life sciences
Biology questions hit hardest when they upend something everyone assumes is true.
Chemistry & elements
Chemistry trivia rewards people who remember the periodic table — or who notice the surprising properties of everyday materials.
Q: Which planet did the "Viking 1" spacecraft send surface images of, starting in 1976?
Answer: Mars
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Medium.
Q: Myopia is the scientific term for which condition?
Answer: Shortsightedness
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Medium.
Q: What was the category of the 2005 hurricane, Hurricane Katrina, in the Saffir-Simpson hurricane wind scale?
Answer: Category 5
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Medium.
Q: What is the study of the cells and tissues of plants and animals?
Answer: Histology
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Medium.
Q: Which gas forms about 78% of the Earth’s atmosphere?
Answer: Nitrogen
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Easy.
Physics & math basics
Physics questions test whether you remember the rules of how things move, fall, and interact. These ones don't require formulas.
Q: What is the elemental symbol for mercury?
Answer: Hg
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Easy.
Q: What is the chemical symbol for Helium?
Answer: He
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Easy.
Q: All of the following human genetic haplogroup names are shared between Y-chromosome and mitochondrial DNA haplogroups EXCEPT:
Answer: Haplogroup U
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Hard.
Q: At what temperature does water boil?
Answer: 212°F
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Medium.
Q: How many moons does the Earth have?
Answer: 1
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Easy.
Astronomy & space
Astronomy trivia is the most awe-inspiring category — the answers usually involve numbers so big they reset your sense of scale.
Q: What are the smallest blood vessels in the human body?
Answer: Capillaries
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Medium.
Q: What is the unit of electrical inductance?
Answer: Henry
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Hard.
Q: What is Hypernatremia?
Answer: Increase in blood sodium
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Medium.
Q: Which of the following spacecraft never touched the moon?
Answer: Mariner 4
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Medium.
Q: What is the medical term for low blood sugar?
Answer: Hypoglycemia
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Medium.
Earth science & geology
Earth science trivia explains the planet under your feet — questions where the answer reveals something about the place you live.
Q: The Western Lowland Gorilla is scientifically know as?
Answer: Gorilla Gorilla Gorilla
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Hard.
Q: What is the common name of the chemical compound "dihydrogen monoxide"?
Answer: Water
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Easy.
Q: What is the standard SI unit for distance?
Answer: Metre
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Easy.
Q: Which of these chemical compounds is NOT found in gastric acid?
Answer: Sulfuric acid
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Hard.
Q: On the periodic table of elements, what is the symbol for Tin?
Answer: Sn
Sourced from Open Trivia DB (CC BY-SA 4.0). Difficulty: Medium.
Why science trivia hits different
Most trivia categories test recall. Science trivia tests understanding — when you know the answer to "how many hearts does an octopus have", the FACT is interesting, but the EXPLANATION is what sticks. Daily exposure to science trivia is how curious people stay curious.
The Trivio.NET app delivers a fresh daily quiz with science questions mixed in. 10 questions, 100 seconds. Free, no ads in the way.
Frequently Asked Questions
Are these science trivia questions for adults or kids?
Mixed. The biology and astronomy questions work for ages 8+. Chemistry and physics are slightly older. Mark difficulty for your specific audience.
How can I make science trivia more visual?
Use images alongside questions — periodic table reference, solar system diagrams, anatomy charts. Multi-modal trivia engages more than text-only.
Where can I find more science trivia question packs?
Trivio.NET's Science category has 64+ quiz packs covering biology, chemistry, physics, astronomy and earth science.
What's the most surprising science trivia answer?
Most people are shocked that octopuses have 3 hearts, water transmits sound faster than air, and there are more bacteria on a phone than a toilet seat.
