100 Science Questions with One-word Answers

100 Science Questions with One-word Answers

1. What is the chemical symbol for hydrogen? – H
2. What is the center of an atom called? – Nucleus
3. What planet is known as the Red Planet? – Mars
4. What is the powerhouse of the cell? – Mitochondria
5. What is the chemical symbol for water? – H2O
6. What is the largest planet in our solar system? – Jupiter
7. What is the hardest natural substance on Earth? – Diamond
8. What is the process plants use to make food? – Photosynthesis
9. What is the chemical symbol for gold? – Au
10. What is the primary gas in Earth’s atmosphere? – Nitrogen
11. What is the chemical symbol for oxygen? – O
12. What is the most abundant element in the universe? – Hydrogen
13. What planet is closest to the Sun? – Mercury
14. What is the main component of the Sun? – Hydrogen
15. What is the chemical symbol for silver? – Ag
16. What gas do plants absorb from the atmosphere? – Carbon
17. What is the largest organ in the human body? – Skin
18. What is the chemical symbol for sodium? – Na
19. What type of celestial body is the Sun? – Star
20. What is the chemical symbol for carbon? – C
21. What is the basic unit of life? – Cell
22. What is the chemical symbol for chlorine? – Cl
23. What planet is known as Earth’s twin? – Venus
24. What is the chemical symbol for potassium? – K
25. What is the smallest planet in our solar system? – Mercury
26. What is the process of converting liquid to gas? – Evaporation
27. What is the chemical symbol for calcium? – Ca
28. What is the organelle known as the control center of the cell? – Nucleus
29. What is the chemical symbol for zinc? – Zn
30. What is the main gas found in the air we breathe? – Oxygen
31. What is the primary pigment in plants? – Chlorophyll
32. What is the chemical symbol for helium? – He
33. What is the most reactive metal? – Francium
34. What is the chemical symbol for copper? – Cu
35. What is the process by which plants lose water vapor? – Transpiration
36. What is the chemical symbol for lead? – Pb
37. What organ is responsible for pumping blood? – Heart
38. What is the largest bone in the human body? – Femur
39. What is the chemical symbol for nitrogen? – N
40. What is the chemical symbol for phosphorus? – P
41. What is the nearest star to Earth? – Sun
42. What is the most common blood type? – O
43. What is the main gas responsible for the greenhouse effect? – Carbon
44. What is the chemical symbol for uranium? – U
45. What is the chemical symbol for sulfur? – S
46. What part of the cell contains the genetic material? – Nucleus
47. What is the smallest unit of matter? – Atom
48. What is the chemical symbol for iodine? – I
49. What is the largest internal organ in the human body? – Liver
50. What is the primary gas found in the Martian atmosphere? – Carbon
51. What is the chemical symbol for boron? – B
52. What is the name of the galaxy we live in? – Milky
53. What is the chemical symbol for silicon? – Si
54. What organ is responsible for detoxification? – Liver
55. What is the chemical symbol for aluminum? – Al
56. What is the main component of bone? – Calcium
57. What is the process of cell division? – Mitosis
58. What is the chemical symbol for neon? – Ne
59. What is the layer of Earth that is liquid? – Mantle
60. What is the chemical symbol for argon? – Ar
61. What is the most common element in the human body? – Oxygen
62. What is the chemical symbol for cobalt? – Co
63. What type of blood cells carry oxygen? – Red
64. What is the chemical symbol for nickel? – Ni
65. What is the chemical symbol for tungsten? – W
66. What is the main element in steel? – Iron
67. What is the process by which cells obtain energy? – Respiration
68. What is the chemical symbol for tin? – Sn
69. What planet is known for its rings? – Saturn
70. What is the main gas in Earth’s atmosphere? – Nitrogen
71. What is the primary sugar in milk? – Lactose
72. What is the chemical symbol for manganese? – Mn
73. What is the outermost layer of Earth called? – Crust
74. What is the chemical symbol for platinum? – Pt
75. What is the chemical symbol for chromium? – Cr
76. What is the most common element in Earth’s crust? – Oxygen
77. What is the chemical symbol for lithium? – Li
78. What is the process of solid to gas without liquid? – Sublimation
79. What is the chemical symbol for fluorine? – F
80. What is the largest planet in our solar system? – Jupiter
81. What is the chemical symbol for radon? – Rn
82. What is the smallest unit of a compound? – Molecule
83. What is the chemical symbol for barium? – Ba
84. What is the organ that filters blood? – Kidney
85. What is the chemical symbol for bromine? – Br
86. What is the process of gas to liquid? – Condensation
87. What is the chemical symbol for cesium? – Cs
88. What is the main element in diamond? – Carbon
89. What is the chemical symbol for krypton? – Kr
90. What is the chemical symbol for mercury? – Hg
91. What is the chemical symbol for antimony? – Sb
92. What is the chemical symbol for cadmium? – Cd
93. What is the process of splitting an atom’s nucleus? – Fission
94. What is the chemical symbol for thorium? – Th
95. What is the chemical symbol for arsenic? – As
96. What is the process of joining two atomic nuclei? – Fusion
97. What is the chemical symbol for bismuth? – Bi
98. What is the main organ in the respiratory system? – Lungs
99. What is the chemical symbol for radium? – Ra
100. What is the most abundant element in Earth’s atmosphere? – Nitrogen
101. What is the chemical symbol for iodine? – I
102. What is the lightest element? – Hydrogen
103. What is the chemical symbol for francium? – Fr
104. What is the chemical symbol for silicon? – Si
105. What is the main gas in the air we breathe? – Oxygen
106. What is the chemical symbol for neon? – Ne
107. What is the chemical symbol for tin? – Sn
108. What is the chemical symbol for cobalt? – Co
109. What is the chemical symbol for silver? – Ag
110. What is the chemical symbol for zinc? – Zn
111. What is the chemical symbol for gold? – Au
112. What is the chemical symbol for lead? – Pb
113. What is the chemical symbol for copper? – Cu
114. What is the chemical symbol for mercury? – Hg
115. What is the chemical symbol for chlorine? – Cl
116. What is the chemical symbol for fluorine? – F
117. What is the chemical symbol for bromine? – Br
118. What is the chemical symbol for manganese? – Mn
119. What is the chemical symbol for potassium? – K
120. What is the chemical symbol for sodium? – Na
121. What is the chemical symbol for calcium? – Ca
122. What is the chemical symbol for phosphorus? – P
123. What is the chemical symbol for sulfur? – S
124. What is the chemical symbol for magnesium? – Mg
125. What is the chemical symbol for aluminum? – Al
126. What is the chemical symbol for helium? – He
127. What is the chemical symbol for boron? – B
128. What is the chemical symbol for argon? – Ar
129. What is the chemical symbol for krypton? – Kr
130. What is the chemical symbol for xenon? – Xe
131. What is the chemical symbol for radon? – Rn
132. What is the chemical symbol for cesium? – Cs
133. What is the chemical symbol for lithium? – Li