It is important to understand the basic concepts of science. These are some one-liner science questions and answers which will enhance your knowledge. By reading them you can strengthen your science concepts even more.
Answer: Jupiter
2. How long does it take for light from the Sun to reach Earth?
Answer: Approximately 8 minutes and 20 seconds
3. What is the chemical formula for water?
Answer: H₂O
4. Which element is known to be the lightest?
Answer: Hydrogen
5. Who is known as the father of modern physics?
Answer: Albert Einstein
6. What is the symbol for the element gold?
Answer: Au
7. Which organ in the human body is primarily responsible for filtering blood?
Answer: Kidneys
8. What is the powerhouse of the cell?
Answer: Mitochondria
10. Which planet is known as the Red Planet?
Answer: Mars
11. What is the main gas found in the Earth's atmosphere?
Answer: Nitrogen
12. How many bones are in the adult human body?
Answer: 206
13. What is the main function of red blood cells?
Answer: To transport oxygen throughout the body
14. Who discovered the cell?
Answer: Robert Hooke
15. What molecule carries genetic information?
Answer: DNA
16.What is the human body’s largest organ?
Answer: Skin
17. What vitamin is produced when the skin is exposed to sunlight?
Answer: Vitamin D
18. In which part of the cell does cellular respiration take place?
Answer: Mitochondria
19. Which hormone regulates blood sugar levels?
Answer: Insulin
20. What is the smallest unit of life?
Answer: The cell
21. What structure protects the lungs and heart in the human body?
Answer: Rib cage
22. What is the speed of light?
Answer: 299,792 kilometers per second
23. Who developed the theory of general relativity?
Answer: Albert Einstein
24. What is the unit of force in physics?
Answer: Newton (N)
25. What type of energy is stored in a stretched rubber band?
Answer: Potential energy
26. Who is known as the father of classical mechanics?
Answer: Isaac Newton
27. What is the acceleration due to gravity on Earth?
Answer: 9.8 m/s²
28. What does E = mc² represent?
Answer: Energy equals mass times the speed of light squared (Einstein’s mass-energy equivalence)
29. What is the unit of electrical resistance?
Answer: Ohm (Ω)
30. What is the SI unit of temperature?
Answer: Kelvin (K)
31. Which law states that every action has an equal and opposite reaction?
Answer: Newton's Third Law of Motion
32. What is the chemical formula for common salt?
Answer: NaCl
33. What is the pH level of pure water?
Answer: 7 (neutral)
34. What gas is released when vinegar and baking soda are mixed?
Answer: Carbon dioxide
35. What is the main component of natural gas?
Answer: Methane
36. Who is known as the father of modern chemistry?
Answer: Antoine Lavoisier
37. What is the most abundant element in the Earth’s crust?
Answer: Oxygen
38. What element does 'Fe' represent on the periodic table?
Answer: Iron
39. What type of bond is formed between two hydrogen atoms?
Answer: Covalent bond
40. What is the chemical formula for sulfuric acid?
Answer: H₂SO₄
41. Which acid is commonly found in citrus fruits?
Answer: Citric acid
42. How many planets are in our solar system?
Answer: Eight
43. What is the largest planet in our solar system?
Answer: Jupiter
44. What is the closest star to Earth?
Answer: The Sun
45. What is the name of our galaxy?
Answer: The Milky Way
46. Who was the first human to travel into space?
Answer: Yuri Gagarin
47. What is the hottest planet in our solar system?
Answer: Venus
48. What is a light-year?
Answer: The distance light travels in one year
49. Which planet has the most moons?
Answer: Saturn
50. What is the smallest planet in our solar system?
Answer: Mercury
51. Who developed the first theory that Earth revolves around the Sun?
Answer: Nicolaus Copernicus
52. What is the Earth's core primarily made of?
Answer: Iron and nickel
53. What layer of the Earth do we live on?
Answer: The crust
54. What is the process of rock breaking down called?
Answer: Weathering
55. What type of rock is formed from lava?
Answer: Igneous rock
56. What is the most abundant gas in the Earth's atmosphere?
Answer: Nitrogen
57. How much of Earth's surface is covered by water?
Answer: NaCl
33. What is the pH level of pure water?
Answer: 7 (neutral)
34. What gas is released when vinegar and baking soda are mixed?
Answer: Carbon dioxide
35. What is the main component of natural gas?
Answer: Methane
36. Who is known as the father of modern chemistry?
Answer: Antoine Lavoisier
37. What is the most abundant element in the Earth’s crust?
Answer: Oxygen
38. What element does 'Fe' represent on the periodic table?
Answer: Iron
39. What type of bond is formed between two hydrogen atoms?
Answer: Covalent bond
40. What is the chemical formula for sulfuric acid?
Answer: H₂SO₄
41. Which acid is commonly found in citrus fruits?
Answer: Citric acid
42. How many planets are in our solar system?
Answer: Eight
43. What is the largest planet in our solar system?
Answer: Jupiter
44. What is the closest star to Earth?
Answer: The Sun
45. What is the name of our galaxy?
Answer: The Milky Way
46. Who was the first human to travel into space?
Answer: Yuri Gagarin
47. What is the hottest planet in our solar system?
Answer: Venus
48. What is a light-year?
Answer: The distance light travels in one year
49. Which planet has the most moons?
Answer: Saturn
50. What is the smallest planet in our solar system?
Answer: Mercury
51. Who developed the first theory that Earth revolves around the Sun?
Answer: Nicolaus Copernicus
52. What is the Earth's core primarily made of?
Answer: Iron and nickel
53. What layer of the Earth do we live on?
Answer: The crust
54. What is the process of rock breaking down called?
Answer: Weathering
55. What type of rock is formed from lava?
Answer: Igneous rock
56. What is the most abundant gas in the Earth's atmosphere?
Answer: Nitrogen
57. How much of Earth's surface is covered by water?
Answer: Approximately 71%
58. What is the longest river on Earth?
Answer: The Nile River
59. What is the highest mountain peak in the world?
Answer: Mount Everest
60. What is the Earth's largest ocean?
Answer: The Pacific Ocean
61. What do we call molten rock beneath the Earth's surface?
Answer: Magma
62. What is the greenhouse effect?
Answer: Warming of Earth’s atmosphere due to trapped heat
63. Which gas is primarily responsible for global warming?
Answer: Carbon dioxide
64. What type of energy is produced from sunlight?
Answer: Solar energy
65. What is the main source of oxygen on Earth?
Answer: Plants (through photosynthesis)
66. What layer of the atmosphere contains the ozone layer?
Answer: Stratosphere
67. What is deforestation?
Answer: The clearing of forests for other uses
68. Which environmental phenomenon results in acid rain?
Answer: Emission of sulfur dioxide and nitrogen oxides
69. What is the term for water recycling through the Earth’s atmosphere?
Answer: The water cycle
70. What percentage of Earth's water is fresh water?
Answer: Around 2.5%
71. What is biodiversity?
Answer: The variety of life in an ecosystem
72. What is the smallest unit of life?
Answer: The cell.
73. What planet is known as the "Red Planet"?
Answer: Mars.
74. What gas do humans need to breathe to survive?
Answer: Oxygen.
75.Who discovered gravity?
Answer: Isaac Newton.
76. What is the chemical symbol for water?
Answer: H₂O.
77. What is the powerhouse of the cell?
Answer: Mitochondria.
78. What is the speed of light in a vacuum?
Answer: 300,000 km/s.
79. Which planet is closest to the sun?
Answer: Mercury.
80. What is the hardest natural substance on Earth?
Answer: Diamond.
81. Who invented the telephone?
Answer: Alexander Graham Bell.
82. What is the process by which plants make their food?
Answer: Photosynthesis.
83. What is the main gas found in the Earth's atmosphere?
Answer: Nitrogen.
84. What organ pumps blood throughout the body?
Answer: The heart.
85. Which element has the atomic number 1?
Answer: Hydrogen.
86. What is the boiling point of water in Celsius?
Answer: 100°C.
87. What part of the cell contains genetic material?
Answer: The nucleus.
88. Which planet is known for its rings?
Answer: Saturn.
89. Who is known as the father of modern physics?
Answer: Albert Einstein.
90. What mineral is necessary for strong bones?
Answer: Calcium.
91. What metal is liquid at room temperature?
Answer: Mercury.
92. What is the largest organ in the human body?
Answer: The skin.
93. What is the main source of energy for the Earth?
Answer: The sun.
94. What type of animal is a frog?
Answer: Amphibian.
95. What do bees collect from flowers to make honey?
Answer: Nectar.
96. What is the main element in the Earth's core?
Answer: Iron.
97. What is the most abundant gas in the universe?
Answer: Hydrogen.
98. What part of the plant conducts photosynthesis?
Answer: The leaves.
99. What type of bond involves sharing electrons?
Answer: Covalent bond.
100. What galaxy is Earth located in?
Answer: The Milky Way.