Science & Nature50 randomly selected Science & Nature questions for quizmasters. New random selection made weekly. Next update: Monday 22nd June 2026 (Please note: Questions are taken from our database of previous quizzes. Some questions and answers may be outdated.) |
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| 1. | Where in our solar system would you find the Colombo Gap, Maxwell Gap, Bond Gap, and Dawes Gap? |
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Rings of Saturn (C Ring) | |
| 2. | What is the base unit of temperature in the International System of Units? |
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Kelvin | |
| 3. | Hyperopia is a medical term for what? |
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Far-sightedness / Longsightedness (Myopia is nearsightedness / shortsightedness) | |
| 4. | What was the surname of the German engineer who invented and patented the first rotary engine? |
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Wankel (Felix Wankel) | |
| 5. | Who became the first American to orbit the Earth on 20th February 1962? |
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John Glenn (John H. Glenn, Jr.) | |
| 6. | What 'C' is the correct term for Siamese Twins? |
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Conjoined twins | |
| 7. | What is measured with an anemometer? |
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Wind speed | |
| 8. | What 'G' describes the decimal number 1100? |
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Googol | |
| 9. | What 'T' describes each of these two flat, triangular muscles? |
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Trapezius /Trapezoid | |
| 10. | A branch of entomology, coleopterology is the scientific study of what group of insects? |
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Beetles | |
| 11. | In mathematics, what type of number has a real and imaginary part? |
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Complex number | |
| 12. | Oncology is a branch of medicine that deals with the prevention, diagnosis, and treatment of what? |
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Cancer | |
| 13. | What 'L' describes the group of fluid-filled tubes and chambers in the ear which contain the receptors for the senses of balance and hearing? |
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Labyrinth | |
| 14. | Endemic to Africa and largely terrestrial, hunting its prey on foot, what 'S' describes this bird of prey? |
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Secretarybird | |
| 15. | What 'A' describes the fluid that protects a fœtus during pregnancy? |
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Amniotic | |
| 16. | What acid is also known as vitamin B9? |
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Folic acid / Folate / Folacin | |
| 17. | In computing, what does CPU stand for? |
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Central processing unit | |
| 18. | The chemical compound HCN is commonly known as Hydrogen ... what? |
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Cyanide (Prussic acid) | |
| 19. | In the human body, by what name is the ulner nerve more commonly known? |
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Funny bone | |
| 20. | What is the medical term for the largest bone in the human body? |
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Femur (thigh bone) | |
| 21. | The Bortle scale is a nine-level numeric scale that measures the brightness at any given location of what? |
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The night sky (from 1 "Excellent dark-sky" to 9 "Inner-city sky") | |
| 22. | Also known as the white of the eye, what 'S' describes the opaque, fibrous, protective, outer layer of the eye containing collagen and elastic fibre? |
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Sclera | |
| 23. | What two body parts are connected by the Eustachian tube? |
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Nose and ear | |
| 24. | The asteroid belt in our Solar System is located roughly between the orbits of what two planets? |
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Mars and Jupiter | |
| 25. | What 'A' is a syndrome defined as a mild form of autism combined with relatively normal language and intelligence? |
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Asperger's | |
| 26. | At just over one millimetre in length, the stapedius is the smallest skeletal muscle in the human body. Where is it located? |
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Ear (its purpose is to stabilize the smallest bone in the body, the stapes or strirrup bone of the middle ear) | |
| 27. | What 'F' describes either a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into smaller parts? |
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Fission | |
| 28. | What 7-letter word can be spelt using the chemical symbols for rhenium, cerium, iodine, and platinum? |
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Receipt | |
| 29. | Which of these does an adult human have most of? A. Teeth B. Vertebrae C. Ribs |
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B. Vertebrae (32 / 33 / 24) | |
| 30. | Weighing up to 3kg, what is the world's largest type of frog? |
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Goliath frog | |
| 31. | What 6-letter word can be spelt using the chemical symbols for uranium, niobium, oxygen, and radon? |
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Unborn | |
| 32. | What type of animal are sakis, tamarins and capuchins? |
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Monkey (New World monkeys) | |
| 33. | What 'H' describes a mostly inherited genetic disorder that impairs the body's ability to make blood clots? |
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Haemophilia / Hemophilia | |
| 34. | Sound waves with a frequency below the lower limit of human audibility are called ____sound (fill in the blank.) |
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Infra | |
| 35. | At standard pressure, caesium, rubidium, Francium and Gallium become liquid at or just above 25°C, but at 20°C, what are the only two liquid elements? |
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Bromine & Mercury | |
| 36. | What 'P' describes this genus of flower? |
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Peony (Paeonia) | |
| 37. | What 5-letter word can be spelt using the chemical symbols for Samarium, Iridium and Potassium? |
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Smirk | |
| 38. | Named after a province of Thailand, what breed of domestic cat is this? |
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Korat (โคราช, also Si-Sawat สีสวาด) | |
| 39. | How is the hexadecimal number 3E8 expressed as a decimal number? |
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1000 (3×256 + 14×16 + 8×1 ) | |
| 40. | A member of the gourami family, what species of fish is this? |
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Siamese fighting fish (Betta splendens) | |
| 41. | What 'M' is the collective name for a gathering of crows? |
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Murder | |
| 42. | Arrange these poodle sizes in the correct order, largest first: Miniature, Toy, Standard. |
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Standard, Miniature, Toy | |
| 43. | Native to the mountains of southern Europe, what 'L' describes this small tree? |
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Laburnum | |
| 44. | What crop is regularly threatened by the boll weevil? |
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Cotton | |
| 45. | What is the brightest star in the Earth's night sky? |
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Sirius (known colloquially as the "Dog Star") | |
| 46. | Oncology is the study of what? |
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Cancer | |
| 47. | What is the name of the cartilage in the nose that separates the nostrils? |
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Septum | |
| 48. | What is the largest moon of Saturn and the second-largest moon in the Solar System, after Jupiter's Ganymede? |
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Titan | |
| 49. | In 1824, this became the first genus of non-avian dinosaur to be validly named. From the Greek for "Great Lizard", what is it called? |
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Megalosaurus | |
| 50. | 18 karat red gold is usually made with 75% gold and 25% what? |
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Copper | |
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