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Science trivia questions

Questions on space, the human body, chemistry, physics and the natural world.

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Updated November 2026.

1. How many points does a typical snowflake have? Answer: Six
2. What red-leafed Christmas plant is native to Mexico? Answer: Poinsettia
3. How many legs does a spider have? Answer: Eight
4. Are spiders insects? Answer: No, they are arachnids
5. Bats are the only mammals that can truly do what? Answer: Fly
6. To a botanist, is a pumpkin a fruit or a vegetable? Answer: A fruit
7. What do spiders make their webs from? Answer: Silk
8. Which part of your skeleton protects your brain? Answer: The skull
9. What word describes animals that are active at night, like bats and owls? Answer: Nocturnal
10. What is it called when bats find their way by listening for echoes? Answer: Echolocation
11. What do vampire bats feed on? Answer: Blood
12. What is the word for a strong fear of spiders? Answer: Arachnophobia
13. How often does a leap year usually come around? Answer: Every four years
14. When it is New Year's Eve, what season is it in Australia? Answer: Summer
15. About how many days does the Earth take to travel once around the sun? Answer: About 365
16. Which imaginary line in the Pacific Ocean marks where each new calendar day begins? Answer: The International Date Line
17. A year ending in 00 is a leap year only if it divides evenly by which number? Answer: 400
18. Cranberries grow in wet fields that farmers flood at harvest. What are those fields called? Answer: Bogs (called marshes in Wisconsin)
19. Which amino acid in turkey often gets the blame for the nap after dinner? Answer: Tryptophan
20. Do pumpkins grow on a tree, a bush or a vine? Answer: A vine
21. What planet is known as the Red Planet? Answer: Mars
22. What is the largest planet in our solar system? Answer: Jupiter
23. What gas do plants take in from the air to make their food? Answer: Carbon dioxide
24. What is the chemical symbol for gold? Answer: Au
25. What is the chemical symbol for iron? Answer: Fe
26. What gemstone sits at the top of the Mohs hardness scale? Answer: Diamond
27. What force pulls objects toward the center of the Earth? Answer: Gravity
28. How many bones are in the adult human body? Answer: 206
29. What particle in an atom carries a negative charge? Answer: Electron
30. What everyday liquid has the chemical formula H2O? Answer: Water
31. What is the closest star to Earth? Answer: The Sun
32. What planet is closest to the Sun? Answer: Mercury
33. At what temperature in degrees Celsius does water boil at sea level? Answer: 100
34. What organ pumps blood around your body? Answer: Heart
35. What is the name of the galaxy that contains our solar system? Answer: The Milky Way
36. What gas makes up most of Earth's atmosphere? Answer: Nitrogen
37. What part of a plant takes in water from the soil? Answer: Roots
38. What is the process plants use to turn sunlight into food? Answer: Photosynthesis
39. What scientist developed the theory of general relativity? Answer: Albert Einstein
40. What scientist published the three laws of motion in 1687? Answer: Isaac Newton
41. What element has the atomic number 1? Answer: Hydrogen
42. What type of blood cell fights infection? Answer: White blood cells
43. What do the letters DNA stand for? Answer: Deoxyribonucleic acid
44. What instrument measures air pressure? Answer: Barometer
45. What tool do you use to measure temperature? Answer: Thermometer
46. What is molten rock called once it flows out of a volcano? Answer: Lava
47. What is molten rock called while it is still underground? Answer: Magma
48. What planet is famous for its bright, wide rings? Answer: Saturn
49. How many planets are in our solar system? Answer: Eight
50. What kind of animal was Dolly, the first mammal cloned from an adult cell? Answer: Sheep
51. What vitamin does your skin make in sunlight? Answer: Vitamin D
52. What number on the pH scale is neutral? Answer: 7
53. What color do you get when you mix blue and yellow paint? Answer: Green
54. What is the scientific study of plants called? Answer: Botany
55. What gas do people need to breathe in to stay alive? Answer: Oxygen
56. What kind of tissue connects muscle to bone? Answer: Tendon
57. What green pigment lets plants absorb sunlight? Answer: Chlorophyll
58. What is the colored part of the eye called? Answer: Iris
59. What blood type is known as the universal donor? Answer: O negative
60. What silvery metal, once common in thermometers, is liquid at room temperature? Answer: Mercury
61. How many chambers does the human heart have? Answer: Four
62. What simple machine is a seesaw an example of? Answer: Lever
63. What do you call a scientist who studies fossils? Answer: Paleontologist
64. In which direction does the Sun rise? Answer: East
65. What is it called when a gas cools and turns into a liquid? Answer: Condensation
66. What was reclassified from a planet to a dwarf planet in 2006? Answer: Pluto
67. What organ makes insulin? Answer: Pancreas
68. What do you call a space rock that survives its fall and lands on Earth? Answer: Meteorite
69. What are the two poles of a magnet called? Answer: North and south
70. What do fish use to breathe underwater? Answer: Gills
71. In which part of the body is the stapes, the smallest bone? Answer: The ear
72. What is the chemical symbol for potassium? Answer: K

Tips for a better game

• Ten questions make a round. After each round, the losing team picks the next topic.
• For a quieter game, have teams write answers and reveal them together.
• Mix in the kids list when children are playing, so every team has questions it can win.

Questions people ask

What are some good science trivia questions?

Five from this list: What is the chemical symbol for gold? (Au) What is the name of the galaxy that contains our solar system? (The Milky Way) What tool do you use to measure temperature? (Thermometer) What gas do people need to breathe in to stay alive? (Oxygen) What was reclassified from a planet to a dwarf planet in 2006? (Pluto)

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