Science trivia has an incredible way of captivating our curiosity and sparking our thirst for knowledge. Whether you’re a student eager to ace your next test, a trivia enthusiast looking to challenge yourself, or simply a curious mind fascinated by the wonders of the natural world, science trivia offers endless opportunities for discovery.
From unraveling the mysteries of the cosmos to exploring the intricacies of cellular biology, our collection of 100 science trivia questions will test your knowledge, expand your horizons, and ignite your passion for learning. Dive into this engaging quiz and see how much you really know about the world of science!
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1. What is the chemical symbol for gold?
Answer: Au
Gold’s chemical symbol is Au, derived from the Latin word “aurum.”
2. What planet is known as the Red Planet?
Answer: Mars
Mars is often called the Red Planet due to its reddish appearance caused by iron oxide on its surface.
3. Who is known as the father of modern physics?
Answer: Isaac Newton
Isaac Newton is considered the father of modern physics for his work on the laws of motion and universal gravitation.
4. What is the most abundant gas in Earth’s atmosphere?
Answer: Nitrogen
Nitrogen makes up about 78% of Earth’s atmosphere.
5. What organ in the human body is responsible for pumping blood?
Answer: Heart
The heart is responsible for pumping blood throughout the body.
6. What is the chemical formula for water?
Answer: H2O
Water is composed of two hydrogen atoms and one oxygen atom.
7. How many bones are there in the adult human body?
Answer: 206
An adult human body typically has 206 bones.
8. What is the hardest natural substance on Earth?
Answer: Diamond
Diamond is the hardest natural substance known.
9. What force keeps the planets in orbit around the Sun?
Answer: Gravity
Gravity is the force that keeps planets in orbit around the Sun.
10. What is the powerhouse of the cell?
Answer: Mitochondria
Mitochondria are known as the powerhouse of the cell because they produce energy.
11. What element is known for its role in forming bones and teeth?
Answer: Calcium
Calcium is essential for the formation of bones and teeth.
12. What planet is closest to the Sun?
Answer: Mercury
Mercury is the planet closest to the Sun.
13. What type of galaxy is the Milky Way?
Answer: Spiral Galaxy
The Milky Way is a spiral galaxy.
14. What is the process by which plants make their own food?
Answer: Photosynthesis
Photosynthesis is the process by which plants convert sunlight into food.
15. What is the primary gas in the Earth’s atmosphere responsible for causing the greenhouse effect?
Answer: Carbon Dioxide (CO2)
Carbon dioxide is a major greenhouse gas that traps heat in the Earth’s atmosphere.
16. Who developed the theory of relativity?
Answer: Albert Einstein
Albert Einstein developed the theory of relativity.
17. What is the largest organ in the human body?
Answer: Skin
The skin is the largest organ in the human body.
18. What is the most common element in the universe?
Answer: Hydrogen
Hydrogen is the most common element in the universe.
19. What phenomenon is described by the term “supernova”?
Answer: The explosion of a dying star
A supernova is the explosive death of a star.
20. What is the name of the process by which a liquid turns into a gas?
Answer: Evaporation
Evaporation is the process where a liquid turns into a gas.
21. What is the smallest unit of life that can function independently?
Answer: Cell
The cell is the smallest unit of life capable of independent function.
22. What is the primary function of red blood cells?
Answer: To carry oxygen
Red blood cells are responsible for transporting oxygen throughout the body.
23. What is the largest planet in our solar system?
Answer: Jupiter
Jupiter is the largest planet in our solar system.
24. What is the name of the force that opposes motion between two surfaces in contact?
Answer: Friction
Friction is the force that opposes motion between surfaces.
25. What is the speed of light in a vacuum?
Answer: Approximately 299,792 kilometers per second (or 186,282 miles per second)
The speed of light in a vacuum is roughly 299,792 kilometers per second.
26. What are the building blocks of proteins?
Answer: Amino Acids
Amino acids are the building blocks of proteins.
27. What is the name of the process by which cells divide and replicate?
Answer: Mitosis
Mitosis is the process through which cells divide and replicate.
28. What is the second-most abundant gas in Earth’s atmosphere?
Answer: Oxygen
Oxygen is the second-most abundant gas in Earth’s atmosphere.
29. What is the name of the outermost layer of the Earth’s atmosphere?
Answer: Exosphere
The exosphere is the outermost layer of Earth’s atmosphere.
30. What scientific instrument is used to measure temperature?
Answer: Thermometer
A thermometer is used to measure temperature.
31. What is the chemical symbol for silver?
Answer: Ag
Silver’s chemical symbol is Ag, derived from the Latin word “argentum.”
32. What is the most common type of star in the universe?
Answer: Red Dwarf
Red dwarfs are the most common type of star in the universe.
33. What is the name of the process by which plants absorb water through their roots?
Answer: Osmosis
Osmosis is the process by which plants absorb water through their roots.
34. What is the main component of natural gas?
Answer: Methane
Methane is the primary component of natural gas.
35. What is the name of the layer of the Earth located between the crust and the core?
Answer: Mantle
The mantle is the layer of the Earth located between the crust and the core.
36. What type of blood vessel carries blood away from the heart?
Answer: Artery
Arteries carry blood away from the heart.
37. What is the term for the process of water changing from a liquid to a solid?
Answer: Freezing
Freezing is the process of water turning from a liquid to a solid.
38. What is the name of the largest living mammal?
Answer: Blue Whale
The blue whale is the largest living mammal.
39. What is the term for the study of fungi?
Answer: Mycology
Mycology is the study of fungi.
40. What is the fundamental unit of heredity in living organisms?
Answer: Gene
A gene is the fundamental unit of heredity.
41. What is the most abundant mineral in the Earth’s crust?
Answer: Feldspar
Feldspar is the most abundant mineral in the Earth’s crust.
42. What is the primary function of the ribosomes in a cell?
Answer: Protein Synthesis
Ribosomes are primarily responsible for protein synthesis.
43. What is the process by which plants convert sunlight into energy?
Answer: Photosynthesis
Photosynthesis is the process where plants convert sunlight into chemical energy.
44. What is the study of weather called?
Answer: Meteorology
Meteorology is the study of weather and atmospheric conditions.
45. What is the name of the process where a solid turns directly into a gas?
Answer: Sublimation
Sublimation is the process where a solid turns directly into a gas.
46. What part of the brain is responsible for regulating emotions?
Answer: Limbic System
The limbic system is responsible for regulating emotions.
47. What is the unit of measurement for electrical resistance?
Answer: Ohm
Electrical resistance is measured in ohms.
48. What is the most abundant element in the human body?
Answer: Oxygen
Oxygen is the most abundant element in the human body.
49. What scientific principle explains why airplanes are able to fly?
Answer: Bernoulli’s Principle
Bernoulli’s principle explains how the pressure difference created by air movement helps airplanes fly.
50. What type of bond involves the sharing of electron pairs between atoms?
Answer: Covalent Bond
A covalent bond involves the sharing of electron pairs between atoms.
51. What is the chemical symbol for potassium?
Answer: K
Potassium’s chemical symbol is K, derived from the Latin word “kalium.”
52. What is the name of the process by which plants lose water vapor through their leaves?
Answer: Transpiration
Transpiration is the process by which plants lose water vapor through their leaves.
53. What is the primary function of the mitochondria in a cell?
Answer: Energy Production
Mitochondria are responsible for producing energy in the form of ATP.
54. What is the name of the largest volcano in the solar system?
Answer: Olympus Mons
Olympus Mons is the largest volcano in the solar system, located on Mars.
55. What is the term for a substance that speeds up a chemical reaction without being consumed?
Answer: Catalyst
A catalyst speeds up a chemical reaction without being consumed in the process.
56. What is the name of the process by which cells divide to form two identical daughter cells?
Answer: Mitosis
Mitosis is the process by which cells divide to form two identical daughter cells.
57. What type of radiation is used in microwave ovens?
Answer: Microwave Radiation
Microwave ovens use microwave radiation to heat food.
58. What is the name of the tissue that connects muscles to bones?
Answer: Tendon
Tendons are connective tissues that attach muscles to bones.
59. What is the term for a substance that dissolves in water to form a solution?
Answer: Solute
A solute is a substance that dissolves in a solvent to form a solution.
60. What is the primary gas found in the Earth’s stratosphere that protects us from UV radiation?
Answer: Ozone
The ozone layer in the stratosphere protects us from harmful ultraviolet radiation.
61. What is the name of the process where plants take in carbon dioxide and release oxygen?
Answer: Photosynthesis
Photosynthesis is the process by which plants take in carbon dioxide and release oxygen.
62. What is the term for the measure of the amount of matter in an object?
Answer: Mass
Mass is the measure of the amount of matter in an object.
63. What is the term for the change of state from gas to liquid?
Answer: Condensation
Condensation is the change of state from a gas to a liquid.
64. What is the name of the process where cells break down glucose to produce energy?
Answer: Cellular Respiration
Cellular respiration is the process where cells break down glucose to produce energy.
65. What is the name of the force that causes objects to fall towards the Earth?
Answer: Gravity
Gravity is the force that causes objects to fall towards the Earth.
66. What is the unit of measurement for electric current?
Answer: Ampere (Amp)
Electric current is measured in amperes (amps).
67. What is the term for the process by which an unstable atomic nucleus loses energy by emitting radiation?
Answer: Radioactive Decay
Radioactive decay is the process by which an unstable atomic nucleus loses energy by emitting radiation.
68. What is the name of the process by which water moves from the Earth’s surface to the atmosphere and back again?
Answer: Water Cycle
The water cycle describes the movement of water from the Earth’s surface to the atmosphere and back.
69. What is the primary function of the nervous system?
Answer: To transmit signals between different parts of the body
The nervous system transmits signals between different parts of the body to coordinate actions and responses.
70. What is the name of the process by which plants convert light energy into chemical energy?
Answer: Photosynthesis
Photosynthesis is the process by which plants convert light energy into chemical energy.
71. What type of electromagnetic radiation has the shortest wavelength?
Answer: Gamma Rays
Gamma rays have the shortest wavelength in the electromagnetic spectrum.
72. What is the name of the process where a liquid changes into a gas?
Answer: Evaporation
Evaporation is the process where a liquid changes into a gas.
73. What part of the cell contains genetic material?
Answer: Nucleus
The nucleus contains the cell’s genetic material.
74. What is the name of the force that holds atoms together in a molecule?
Answer: Chemical Bond
Chemical bonds hold atoms together in a molecule.
75. What is the primary function of white blood cells?
Answer: To fight infections
White blood cells are primarily responsible for fighting infections.
76. What is the name of the outermost layer of the Earth’s atmosphere?
Answer: Exosphere
The exosphere is the outermost layer of the Earth’s atmosphere.
77. What is the term for the process where light is absorbed and re-emitted by a substance?
Answer: Fluorescence
Fluorescence is the process where light is absorbed and then re-emitted by a substance.
78. What is the term for the amount of space an object occupies?
Answer: Volume
Volume is the amount of space that an object occupies.
79. What type of biological macromolecule is DNA?
Answer: Nucleic Acid
DNA is a type of nucleic acid.
80. What is the chemical formula for table salt?
Answer: NaCl
Table salt is composed of sodium chloride (NaCl).
81. What is the term for the energy needed to start a chemical reaction?
Answer: Activation Energy
Activation energy is the energy required to start a chemical reaction.
82. What is the name of the process by which plants release oxygen into the atmosphere?
Answer: Photosynthesis
Photosynthesis is the process by which plants release oxygen into the atmosphere.
83. What is the name of the protein responsible for carrying oxygen in the blood?
Answer: Hemoglobin
Hemoglobin is the protein responsible for carrying oxygen in the blood.
84. What is the name of the force that causes objects to be attracted to the Earth?
Answer: Gravity
Gravity is the force that attracts objects towards the Earth.
85. What is the name of the process by which cells convert glucose into energy in the absence of oxygen?
Answer: Fermentation
Fermentation is the process of converting glucose into energy without the use of oxygen.
86. What type of symmetry is exhibited by starfish?
Answer: Radial Symmetry
Starfish exhibit radial symmetry, meaning their body parts are arranged around a central axis.
87. What is the name of the phenomenon where light bends as it passes through different mediums?
Answer: Refraction
Refraction is the bending of light as it passes through different mediums.
88. What is the name of the smallest unit of an element that retains its chemical properties?
Answer: Atom
An atom is the smallest unit of an element that retains its chemical properties.
89. What type of cell division results in four non-identical daughter cells?
Answer: Meiosis
Meiosis results in four non-identical daughter cells.
90. What is the term for a substance that speeds up a chemical reaction without being consumed?
Answer: Catalyst
A catalyst speeds up a chemical reaction without being consumed.
91. What is the name of the structure in a cell responsible for packaging proteins?
Answer: Golgi Apparatus
The Golgi apparatus is responsible for packaging proteins in the cell.
92. What type of wave is used in radio communications?
Answer: Radio Waves
Radio waves are used for radio communications.
93. What is the name of the gas that makes up about 78% of Earth’s atmosphere?
Answer: Nitrogen
Nitrogen makes up about 78% of Earth’s atmosphere.
94. What is the name of the process by which plants absorb sunlight to make food?
Answer: Photosynthesis
Photosynthesis is the process by which plants absorb sunlight to produce food.
95. What is the name of the bond that forms between atoms sharing electrons?
Answer: Covalent Bond
A covalent bond forms between atoms that share electrons.
96. What is the term for the amount of matter in an object?
Answer: Mass
Mass is the amount of matter in an object.
97. What is the name of the process by which heat is transferred through direct contact?
Answer: Conduction
Conduction is the transfer of heat through direct contact.
98. What is the term for a substance that changes color in the presence of an acid or base?
Answer: Indicator
An indicator changes color in response to an acid or base.
99. What is the name of the process where plants absorb water through their roots?
Answer: Osmosis
Osmosis is the process by which plants absorb water through their roots.
100. What is the term for the study of living organisms and their interactions with the environment?
Answer: Ecology
Ecology is the study of living organisms and their interactions with their environment.
