Science Questions and Answer

100 Top Science Questions and Answers

Certainly! Here are 100 science-related questions and answers for a quiz:

  1. What is the largest planet in our solar system?
    Answer: Jupiter.
  2. What is the smallest unit of matter?
    Answer: Atom.
  3. What is the chemical symbol for gold?
    Answer: Au.
  4. Which gas is most abundant in Earth’s atmosphere?
    Answer: Nitrogen.
  5. What is the process by which plants convert sunlight into energy?
    Answer: Photosynthesis.
  6. What is the formula for the speed of light?
    Answer: 299,792,458 meters per second.
  7. What is the study of fossils called?
    Answer: Paleontology.
  8. What is the formula for calculating force?
    Answer: Force = mass × acceleration.
  9. What is the first element on the periodic table?
    Answer: Hydrogen.
  10. Which planet is known as the “Red Planet”?
    Answer: Mars.
  11. What is the largest organ in the human body?
    Answer: Skin.
  12. What is the process by which liquid turns into a gas?
    Answer: Evaporation.
  13. What is the center of an atom called?
    Answer: Nucleus.
  14. What is the unit of electric current?
    Answer: Ampere.
  15. Which scientist proposed the theory of general relativity?
    Answer: Albert Einstein.
  16. What is the largest bone in the human body?
    Answer: Femur (thigh bone).
  17. What is the chemical symbol for iron?
    Answer: Fe.
  18. What is the process by which plants release water vapor through their leaves?
    Answer: Transpiration.
  19. What is the study of the Earth’s atmosphere called?
    Answer: Meteorology.
  20. Which gas gives the color to the planet Neptune?
    Answer: Methane.
  21. What is the largest ocean on Earth?
    Answer: Pacific Ocean.
  22. What is the SI unit of temperature?
    Answer: Kelvin.
  23. What is the formula for calculating density?
    Answer: Density = mass/volume.
  24. What is the branch of biology that studies insects?
    Answer: Entomology.
  25. What is the chemical formula for water?
    Answer: H2O.
  26. Which planet is known for its beautiful rings?
    Answer: Saturn.
  27. What is the process by which plants take in carbon dioxide and release oxygen?
    Answer: Photosynthesis.
  28. What is the study of earthquakes called?
    Answer: Seismology.
  29. What is the force that attracts objects towards the center of the Earth?
    Answer: Gravity.
  30. Which scientist discovered the law of gravity?
    Answer: Sir Isaac Newton.
  31. What is the formula for calculating work?
    Answer: Work = force × distance.
  32. What is the largest organ in the human brain?
    Answer: Cerebrum.
  33. What is the chemical symbol for sodium?
    Answer: Na.
  34. What is the process by which a solid turns into a liquid?
    Answer: Melting.
  35. What is the study of the origin and development of the universe called?
    Answer: Cosmology.
  36. What is the unit of electrical resistance?
    Answer: Ohm.
  37. Which scientist proposed the theory of evolution?
    Answer: Charles Darwin.
  38. What is the largest gland in the human body?
    Answer: Liver.
  39. What is the chemical symbol for oxygen?
    Answer: O.
  40. Which planet is known as the “Blue Planet”?
    Answer: Earth.
  41. What is the study of heredity and genetic variation called?
    Answer: Genetics.
  42. What is the unit of electric voltage?
    Answer: Volt.
  43. What is the process by which a gas turns into a liquid called?
    Answer: Condensation.
  44. What is the branch of science that studies the behavior of matter and energy at the atomic and subatomic levels?
    Answer: Quantum physics.
  45. What is the chemical symbol for carbon?
    Answer: C.
  46. Which planet is known for its Great Red Spot?
    Answer: Jupiter.
  47. What is the process by which plants and animals exchange gases with their environment?
    Answer: Respiration.
  48. What is the study of the Earth’s physical features, climate, and weather patterns called?
    Answer: Geography.
  49. What is the force that opposes the motion of objects through a fluid?
    Answer: Drag.
  50. Which scientist proposed the theory of special relativity?
    Answer: Albert Einstein.
  51. What is the largest organ in the human digestive system?
    Answer: Liver.
  52. What is the chemical symbol for silver?
    Answer: Ag.
  53. What is the process by which a liquid turns into a solid?
    Answer: Freezing.
  54. What is the study of the behavior and characteristics of matter and energy called?
    Answer: Physics.
  55. What is the unit of electric power?
    Answer: Watt.
  56. Which scientist discovered penicillin?
    Answer: Alexander Fleming.
  57. What is the largest internal organ in the human body?
    Answer: Liver.
  58. What is the chemical symbol for helium?
    Answer: He.
  59. What is the process by which light changes direction when it passes through a medium?
    Answer: Refraction.
  60. What is the study of the structure and function of living organisms called?
    Answer: Biology.
  61. What is the largest muscle in the human body?
    Answer: Gluteus maximus.
  62. What is the chemical symbol for potassium?
    Answer: K.
  63. What is the process by which plants bend or grow towards a light source?
    Answer: Phototropism.
  64. What is the study of the Earth’s rocks and minerals called?
    Answer: Geology.
  65. What is the force that holds atomic nuclei together?
    Answer: Strong nuclear force.
  66. Which scientist discovered the laws of motion?
    Answer: Sir Isaac Newton.
  67. What is the unit of electric charge?
    Answer: Coulomb.
  68. What is the largest organ in the human respiratory system?
    Answer: Lungs.
  69. What is the chemical symbol for nitrogen?
    Answer: N.
  70. Which planet is known as the “Morning Star” or “Evening Star”?
    Answer: Venus.
  71. What is the study of the Earth’s ecosystems and the relationships between organisms and their environment called?
    Answer: Ecology.
  72. What is the process by which an unstable atomic nucleus releases energy in the form of radiation?
    Answer: Radioactive decay.
  73. What is the largest desert in the world?
    Answer: Antarctica.
  74. What is the unit of frequency?
    Answer: Hertz.
  75. Which scientist proposed the laws of planetary motion?
    Answer: Johannes Kepler.
  76. What is the largest organ in the human cardiovascular system?
    Answer: Heart.
  77. What is the chemical symbol for calcium?
    Answer: Ca.
  78. What is the process by which plants bend or grow in response to touch or contact?
    Answer: Thigmotropism.
  79. What is the study of the Earth’s oceans and marine life called?
    Answer: Oceanography.
  80. What is the force that allows magnets to attract or repel each other?
    Answer: Magnetic force.
  81. Which planet is known as the “Evening Star”?
    Answer: Venus.
  82. What is the study of the Earth’s past geological periods called?
    Answer: Paleontology.
  83. What is the largest bone in the human arm?
    Answer: Humerus.
  84. What is the chemical symbol for hydrogen?
    Answer: H.
  85. What is the process by which a solid turns directly into a gas without becoming a liquid first?
    Answer: Sublimation.
  86. What is the study of the behavior and interactions of matter and energy in the universe called?
    Answer: Astrophysics.
  87. What is the largest waterfall in the world?
    Answer: Angel Falls in Venezuela.
  88. What is the unit of electric capacitance?
    Answer: Farad.
  89. Which scientist discovered the principles of genetics through experiments with pea plants?
    Answer: Gregor Mendel.
  90. What is the largest organ in the human excretory system?
    Answer: Kidneys.
  91. What is the chemical symbol for chlorine?
    Answer: Cl.
  92. What is the process by which an organism develops from an embryo to its mature form?
    Answer: Development.
  93. What is the study of the Earth’s magnetic field and its effects called?
    Answer: Geomagnetism.
  94. What is the force that opposes the motion of an object sliding or rolling over a surface?
    Answer: Friction.
  95. What is the largest bone in the human body?
    Answer: Femur (thigh bone).
  96. What is the chemical symbol for sodium?
    Answer: Na.
  97. What is the process by which a gas turns directly into a solid without becoming a liquid first?
    Answer: Deposition.
  98. What is the study of the behavior and characteristics of matter and energy at the macroscopic level called?
    Answer: Classical physics.
  99. What is the largest canyon in the world?
    Answer: The Grand Canyon in the United States.
  100. What is the unit of electric resistance?
    Answer: Ohm.
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