science trivia questions

90+ Science Trivia Questions to Boost Your Knowledge

The beauty of science is that it’s ever-changing, so nobody will ever get tired of science trivia questions. Throughout history, a lot of things that were considered “facts” got hit in the head thanks to new scientific research and discoveries, so there’s no shortage of questions and answers like the ones below. Maybe we will update this list with even more stuff in the future, so stay tuned.

Science Trivia Questions and Answers

To make it easier for you to navigate through these science trivia questions and answers, we’ll try to place them in the appropriate category. From there, you’ll be able to read through them better and jot down only the ones that interest you for a possible game night contest. With that said, here’s what we’ve managed to find:

Easy Science Trivia Questions

Let’s start by showing off the questions and answers that even some children might have some knowledge about and then work our way up to more advanced stuff as we go.

Solar System Trivia Questions

  1. Q: Would you weigh more or less on Mars?

A: Less. A person who weighs 200 pounds on Earth would weigh just 76 pounds on Mars.

2. Q: Who was the first person to walk on the Moon?

A: Neil Armstrong. He landed on July 20, 1969, with Edwin “Buzz” Aldrin.

3. Q: What causes a solar eclipse?

A: The moon moves between the sun and Earth, casting a shadow on Earth.

4. Q: What causes the moon to shine?

A: The moon’s surface reflects light from the Sun.

5. Q: What was the first planet discovered with the aid of a telescope?

A: Uranus.

6. Q: Between which two planets does the asteroid belt lie?

A: Mars and Jupiter.

7. Q: What is the only planet in our solar system less dense than water?

A: Saturn.

8. Q: What is the nearest planet to the sun?

A: Mercury.

9. Q: What is the largest planet in the solar system?

A: Jupiter.

10. Q: What is the hottest planet in the solar system?

A: Venus

11. Q: The most recognized model of how the universe began is known as the?

A: The Big Bang.

12. Q: What color is the sunset on Mars?

A: Blue.

Biology Trivia Questions

Now let’s get into another interesting question category, namely biology. We’re going to try and cover as many as we can from this domain, especially because kids start learning about these things from the first few grades in school.

13. Q: What do white blood cells do?

A: White blood cells protect you against illness and disease. “Immunity Cells” are another name for these components.

14. Q: What is the rarest blood type?

A: AB4 negative.

15. Q: What part of the plant conducts photosynthesis?

A: The leaf.

16. Q: What is the largest known animal that walks on land?

A: The elephant.

17. Q: What is the largest known animal overall?

A: The blue whale.

18. Q: What kind of blood type is known as the universal donor?

A: O1 negative.

19. Q: What is the largest organ in the human body?

A: The skin.

20. Q: What tissues connect the muscles to the bones?

A: The tendons.

21. Q: Animals that eat both plants and meat are called what?

A: Omnivores.

22. Q: What is the largest bone in the human body?

A: The femur, also known as the thigh bone.

23. Q: Diabetes develops as the result of a problem with which specific organ in the body?

A: The pancreas.

24. Q: True or false – lightning is hotter than the sun.

A: True.

Physics Trivia Questions

25. Q: What is the smallest unit of matter?

A: An atom.

26. Q: How many states of matter are there?

A: Four: solid, liquid, gas, and plasma.

27. Q: What word can you use to describe when a solid turns into a liquid?

A: Melting.

28. Q: What is a geiger counter used to measure?

A: Radiation levels.

29. Q: A magnifying glass is what type of lens?

A: Convex.

30. Q: Electric resistance is typically measured in what units?

A: Ohms.

31. Q: “For every action, there is an equal and opposite reaction” is an example of one of these.

A: Newton’s Laws.

32. Q: What is the center of an atom called?

A: The nucleus.

33. Q: Who split the atom?

A: Ernest Rutherford.

34. Q: When a gas changes into a liquid, it is called what?

A: Condensation.

35. Q: The wire inside an electric bulb is known as what?

A: Filament.

36. Q: Who first proposed the concept of contact lenses?

A: Leonardo da Vinci.

Chemistry Trivia Questions

37. Q: What is the chemical symbol for lead?

A: Pb.

38. Q: What element is a diamond composed of?

A: Carbon.

39. Q: How many elements are listed in the periodic table?

A: 118.

40. Q: What two elements is water made of?

A: Hydrogen and oxygen.

41. Q: What is the sun mostly made up of?

A: Hydrogen.

42. Q: What inorganic molecule is produced by lightning?

A: Ozone.

43. Q: Bronze is an alloy consisting primarily of what two elements?

A: Copper and tin.

44. Q: What reaction releases energy into its surroundings?

A: Exothermic reaction.

45. Q: This type of material does not allow electricity to flow through them easily, unlike conductors which are used for their ability to rapidly allow electricity to pass through. What is this material called?

A: Insulators.

46. Q: What word do scientists use to describe a unit of measure that is also the name of an animal?

A: A mole.

47. Q: In 1953, the United States of America conducted its first and only nuclear artillery test. Where was the test held?

A: Nevada.

48. Q: Most of a penny is made from what type of metal?

A: Zinc.

Hard Science Trivia Questions

Now we’ve finally completed the relatively simple science trivia questions and answers. Let’s move onto the next section, with much harder questions that will keep many teens and adults second-guessing.

Geology, Geography, and Solar System Trivia Questions

49. Q: How long does it take for light from the Sun to reach the Earth?

A: 8 minutes and 20 seconds. Some scientists have speculated that faster travel might be possible, but so far there’s no experiment to prove this.

50. Q: What is the only rock that floats?

A: Pumice. It’s actually created from lava, and it forms from the froth at the top of the laval flow that then cools very rapidly.

51. Q: Where can you find the oldest living tree on Earth, which has an age of approximately 4,843 years?

A: Also known as Methuselah, this bristlecone pine has been around since before the first building blocks were laid on the foundation of Ancient Rome, and it can be currently visited in California.

52. Q: Where is the largest known meteorite crater on Earth?

A: The Vredefort Ring in South Africa, with a 299 km diameter.

53. Q: What name is given to the planets located outside solar system?

A: Extrasolar planets.

54. Q: What is the basic cause of Aurora?

A: Charged particles from solar wind.

55. Q: What is the age of the Sun?

A: 5 Billion years.

56. Q: Is Obsidian an igneous, sedimentary or metamorphic rock?

A: Igneous.

57. Q: What is the cause of Tsunami?

A: Tsunami is caused by the displacement of water due to earthquake or landslide under sea.

58. Q: Is the stratosphere above or below the troposphere?

A: It extends 50km above the troposphere.

59. Q: Name the longest living structure on earth?

A: The greater barrier reef, Australia.

60. Q: What is the highest recorded surface wind speed on earth?

A: 372 Km per hour.

Biology, Anatomy, and Anthropology Trivia Questions

61. Q: What is the temperature of human body during digestion?

A: The body likes to keep its core temperature steady at about 100° F., which is when the best digestion occurs.

62. Q: Which is most dangerous among bees, snakes, house flies, or sharks when attributed to human deaths?

A: House flies.

63. Q: What is the end cause of every single human death?

A: Cerebral hypoxia – the lack of oxygen in the brain. When people die, their brains essentially starve, and that may be the cause of near-death-experiences and hallucinations.

64. Q: What is the scientific name for the job or role that a certain organism plays within its habitat.

A: Niche. Not to be confused with the same concept within businesses, musical genres, and so forth.

65. Q: Which animal’s tail is so strong that it can lift the animal’s hind legs off the ground while standing on it.

A: The kangaroo.

66. Q: What is the scientific name for the elephant’s trunk?

A: Proboscis, which also means nose.

67. Q: What animal is the T-Rex’s closest living relative?

A: The chicken. Birds in general are actually quite closely related to the extinct dinosaurs, which is why many researchers have played around with the idea that dinosaurs had feathers.

68. Q: What is the name of colored part of human eyes which controls the light passing through the pupil?

A: The iris, not to be confused with the flower of the same name.

69. Q: What is the name of the substance that gives the skin and hair their pigmentation? (Hint: sunbathing affects the amounts of this substance)

A: Melanin.

70. Q: What are the bottom-located chambers of the heart known as?

A: The ventricles.

71. Q: Of which substance are the nails made out of?

A: Keratin.

72. Q: What is the inner most part of the bones known as?

A: The bone marrow.

Physics, Chemistry, and Other Science Trivia Questions

73. Q: True or false – Lower tension on a tennis racket results in more control and less power.

A: False. Most racket manufacturers recommend that you use 50 to 70 pounds of tension when adjusting your racket, but it totally depends on your personal preference as a player.

74. Q: What islands were extensively studied by the now-famous Charles Darwin?

A: The Galapagos Islands.

75. Q: HIV was first discovered in 1981, and it is known to cause a condition called AIDS, which can be fatal if left untreated. What does AIDS stand for and what type of virus is HIV?

A: AIDS stands for Acquired Immunodeficiency Syndrome, and HIV is a retrovirus.

76. Q: In purely scientific terms, how long is an eon?

A: An eon lasts for one billion years. Basically, our planet is 4.54 billion eons old, and the first signs of life appeared not long after the Big Bang.

77. Q: If you put an insect and a plant in airtight container, what can you expect to happen?

A: They use and release different types of air, so they should continue to live.

78. Q: The pollutants which move downward with percolating groundwater are called what?

A: Leachates.

79. Q: On what is the principle of working of rockets based?

A: The law of conservation of momentum.

80. Q: What is the shape of a regular human’s DNA?

A: Double helix.

81. Q: What is white gold?

A: White gold is an alloy of gold and white metal such as palladium or silver.

82. Q: What is the fool’s gold?

A: The crystals of iron pyrite.

83. Q: Why is nickel not used for the creation of white gold?

A: It’s not that nickel wouldn’t be great at forming white gold, it’s because it causes skin allergies.

84. Q: Does the sun also rotate?

A: Yes, but only once around 27 days.

85. Q: What is the composition of sun?

A: About 70 percent hydrogen, 28 percent helium, and 2 percent other mass.

86. Q: What is the function of a manometer?

A: Measuring the pressure of closed systems.

87. Q: What is the highest recorded surface wind speed on earth?

A: A whopping 372 Km per hour.

88. Q: What is the pyrogen?

A: The substance in the human body that triggers a fever response.

89. Q: What is the amount of salt in an average human body?

A: 250 grams.

90. Q: What is the percentage of fire-related deaths caused by smoke inhalation rather than burns?

A: 80%.

91. Q: What is the fraction of volume of ice seen outside when immersed in water?

A: 10.5%.

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