Top keywords by niche › Science and education
Top 1,180 Science Keywords
Monthly search volume, CPC, competition and a 12-month trend for 1,180 science keywords, updated October 2026.
Science keywords are school and curiosity terms: the branches of science, experiments, fair projects, definitions and the big questions. Volume is steady and high; CPCs are low outside courses and kits. Education publishers and science media are the audience.
The list holds 1,180 keywords with a combined 165,818,790 searches a month. The most searched are periodic table (9,140,000), earthquakes (3,350,000), stars (2,740,000), dentistry (1,830,000), galaxies (1,830,000), global positioning system (1,830,000), hurricanes (1,500,000), proton (1,500,000), schizophrenia (1,500,000) and solar system (1,500,000).
Advertisers pay most for biodiversity hotspots ($7.20 a click), galaxy formation ($6.00 a click), coral bleaching ($4.83 a click), habitat destruction ($4.49 a click) and ethology ($4.42 a click). 18% of the keywords in the list cost $1 or more a click, which marks the commercial end of the niche.
Demand is steady through the year: across the list, the busiest and quietest months are within 1.4x of each other. The trend column shows each keyword's own twelve months.
Volumes are global monthly averages from Google; CPC is the top-of-page bid in US dollars; competition runs from 0 (few advertisers) to 1 (many). Last refreshed October 2026. For any other keyword, the free search volume checker gives the same numbers, and the Keywords Everywhere extension shows them inside Google as you search.
| No | Keyword | Search volume | CPC | Competition | Trend |
|---|---|---|---|---|---|
| 1 | periodic table | 9,140,000 | $0.05 | 0.38 | |
| 2 | earthquakes | 3,350,000 | $0.15 | 0.01 | |
| 3 | stars | 2,740,000 | $0.06 | 0.03 | |
| 4 | dentistry | 1,830,000 | $3.06 | 0.19 | |
| 5 | galaxies | 1,830,000 | $0.35 | 0.26 | |
| 6 | global positioning system | 1,830,000 | $0.03 | 0.23 | |
| 7 | hurricanes | 1,500,000 | $0.08 | 0.06 | |
| 8 | proton | 1,500,000 | $0.03 | 0.02 | |
| 9 | schizophrenia | 1,500,000 | $0.98 | 0.05 | |
| 10 | solar system | 1,500,000 | $0.58 | 0.54 | |
| 11 | viruses | 1,500,000 | $0.08 | 0.01 | |
| 12 | batteries | 1,220,000 | $0.33 | 0.33 | |
| 13 | big bang theory | 1,220,000 | $0.50 | 0.02 | |
| 14 | comets | 1,220,000 | $0.02 | 0.47 | |
| 15 | parasites | 1,220,000 | $0.14 | 0.01 | |
| 16 | planets | 1,220,000 | $0.03 | 0.43 | |
| 17 | psychiatry | 1,220,000 | $2.85 | 0.23 | |
| 18 | tornadoes | 1,220,000 | $0.02 | 0.01 | |
| 19 | tsunamis | 1,220,000 | $0.44 | 0.00 | |
| 20 | alloys | 1,000,000 | $1.20 | 0.02 | |
| 21 | big bang | 1,000,000 | $0.01 | 0.04 | |
| 22 | black holes | 1,000,000 | $0.04 | 0.01 | |
| 23 | chemistry | 1,000,000 | $0.28 | 0.02 | |
| 24 | ct scans | 1,000,000 | $0.16 | 0.02 | |
| 25 | deep brain stimulation | 1,000,000 | $0.55 | 0.10 | |
| 26 | evolution | 1,000,000 | $0.15 | 0.07 | |
| 27 | forestry | 1,000,000 | $0.22 | 0.01 | |
| 28 | parkinsons disease | 1,000,000 | $0.06 | 0.08 | |
| 29 | computed tomography | 823,000 | $0.36 | 0.02 | |
| 30 | el nino | 823,000 | $0.03 | 0.08 | |
| 31 | electronics | 823,000 | $0.10 | 0.16 | |
| 32 | endocrinology | 823,000 | $0.75 | 0.07 | |
| 33 | fossils | 823,000 | $0.09 | 0.74 | |
| 34 | geometry | 823,000 | $0.02 | 0.04 | |
| 35 | habitat | 823,000 | $0.09 | 0.71 | |
| 36 | linear programming | 823,000 | $0.06 | 0.11 | |
| 37 | magnetic resonance imaging | 823,000 | $0.50 | 0.02 | |
| 38 | mechanics | 823,000 | $1.47 | 0.14 | |
| 39 | memory | 823,000 | $0.04 | 0.05 | |
| 40 | neurology | 823,000 | $0.61 | 0.12 | |
| 41 | photosynthesis | 823,000 | $0.03 | 0.01 | |
| 42 | physics | 823,000 | $0.40 | 0.02 | |
| 43 | pulsars | 823,000 | $0.00 | 0.11 | |
| 44 | supernova | 823,000 | $0.14 | 0.03 | |
| 45 | supernovae | 823,000 | $0.14 | 0.03 | |
| 46 | vitamins | 823,000 | $0.53 | 0.45 | |
| 47 | mri | 823,000 | $0.46 | 0.04 | |
| 48 | adverse drug reactions | 673,000 | $0.39 | 0.02 | |
| 49 | anatomy | 673,000 | $0.31 | 0.12 | |
| 50 | antivirals | 673,000 | $0.24 | 0.96 | |
| 51 | biology | 673,000 | $0.15 | 0.01 | |
| 52 | botany | 673,000 | $0.02 | 0.10 | |
| 53 | elisa | 673,000 | $0.01 | 0.26 | |
| 54 | fusion | 673,000 | $0.23 | 0.10 | |
| 55 | gastroenterology | 673,000 | $0.88 | 0.15 | |
| 56 | lasers | 673,000 | $0.11 | 0.60 | |
| 57 | measurement | 673,000 | $0.14 | 0.07 | |
| 58 | multiple sclerosis | 673,000 | $0.08 | 0.18 | |
| 59 | nebulae | 673,000 | $1.16 | 0.04 | |
| 60 | optometry | 673,000 | $2.25 | 0.25 | |
| 61 | satellites | 673,000 | $0.35 | 0.02 | |
| 62 | statics | 673,000 | $0.13 | 0.01 | |
| 63 | statistics | 673,000 | $0.13 | 0.01 | |
| 64 | urology | 673,000 | $0.62 | 0.10 | |
| 65 | xrays | 673,000 | $0.53 | 0.04 | |
| 66 | law | 673,000 | $0.34 | 0.04 | |
| 67 | algebra | 550,000 | $0.27 | 0.02 | |
| 68 | antibiotics | 550,000 | $1.60 | 0.28 | |
| 69 | asteroids | 550,000 | $0.06 | 0.02 | |
| 70 | mathematics | 550,000 | $0.12 | 0.04 | |
| 71 | microscopy | 550,000 | $0.24 | 0.84 | |
| 72 | mitosis | 550,000 | $0.05 | 0.00 | |
| 73 | nephrology | 550,000 | $0.74 | 0.05 | |
| 74 | oncology | 550,000 | $1.06 | 0.04 | |
| 75 | pathology | 550,000 | $0.45 | 0.01 | |
| 76 | pet scans | 550,000 | $0.07 | 0.05 | |
| 77 | physiology | 550,000 | $1.07 | 0.00 | |
| 78 | pressure | 550,000 | $0.09 | 0.02 | |
| 79 | principal component analysis | 550,000 | $1.48 | 0.02 | |
| 80 | quarks | 550,000 | $0.02 | 0.06 | |
| 81 | rheumatology | 550,000 | $1.60 | 0.09 | |
| 82 | sampling | 550,000 | $0.35 | 0.02 | |
| 83 | universe | 550,000 | $0.27 | 0.02 | |
| 84 | gis | 550,000 | $1.20 | 0.04 | |
| 85 | alzheimers disease | 450,000 | $0.17 | 0.13 | |
| 86 | archaeology | 450,000 | $0.22 | 0.02 | |
| 87 | astronomy | 450,000 | $0.78 | 0.02 | |
| 88 | calculus | 450,000 | $0.38 | 0.02 | |
| 89 | cardiology | 450,000 | $1.17 | 0.08 | |
| 90 | cern | 450,000 | $0.01 | 0.01 | |
| 91 | chlorophyll | 450,000 | $0.05 | 0.86 | |
| 92 | civil engineering | 450,000 | $0.71 | 0.04 | |
| 93 | dark matter | 450,000 | $0.57 | 0.03 | |
| 94 | dynamics | 450,000 | $0.50 | 0.05 | |
| 95 | fungi | 450,000 | $0.23 | 0.03 | |
| 96 | genes | 450,000 | $0.26 | 0.09 | |
| 97 | homeostasis | 450,000 | $0.01 | 0.00 | |
| 98 | mechanical engineering | 450,000 | $0.57 | 0.07 | |
| 99 | momentum | 450,000 | $0.27 | 0.05 | |
| 100 | ohms law | 450,000 | $0.00 | 0.01 | |
| 101 | plastics | 450,000 | $0.19 | 0.07 | |
| 102 | pollution | 450,000 | $0.60 | 0.00 | |
| 103 | radiology | 450,000 | $1.10 | 0.03 | |
| 104 | science museums | 450,000 | $0.27 | 0.31 | |
| 105 | sociology | 450,000 | $3.62 | 0.02 | |
| 106 | surgery | 450,000 | $0.52 | 0.03 | |
| 107 | telescope | 450,000 | $0.12 | 0.97 | |
| 108 | theory | 450,000 | $0.76 | 0.56 | |
| 109 | transistors | 450,000 | $0.05 | 0.12 | |
| 110 | trigonometry | 450,000 | $0.17 | 0.00 | |
| 111 | ultrasound | 450,000 | $0.89 | 0.09 | |
| 112 | vaccination | 450,000 | $0.62 | 0.07 | |
| 113 | vaccines | 450,000 | $0.62 | 0.07 | |
| 114 | water cycle | 450,000 | $0.26 | 0.03 | |
| 115 | algorithm | 368,000 | $0.01 | 0.01 | |
| 116 | algorithms | 368,000 | $0.01 | 0.01 | |
| 117 | altruism | 368,000 | $0.02 | 0.00 | |
| 118 | ceramics | 368,000 | $0.19 | 0.11 | |
| 119 | chromosomes | 368,000 | $0.22 | 0.01 | |
| 120 | computer science | 368,000 | $0.40 | 0.10 | |
| 121 | coronal mass ejections | 368,000 | $0.72 | 0.04 | |
| 122 | ecosystem | 368,000 | $0.15 | 0.02 | |
| 123 | ecosystems | 368,000 | $0.15 | 0.02 | |
| 124 | entropy | 368,000 | $0.36 | 0.01 | |
| 125 | enzymes | 368,000 | $0.48 | 0.21 | |
| 126 | equilibrium | 368,000 | $0.14 | 0.03 | |
| 127 | frequency | 368,000 | $0.02 | 0.00 | |
| 128 | geology | 368,000 | $0.25 | 0.01 | |
| 129 | halflife | 368,000 | $0.01 | 0.01 | |
| 130 | hematology | 368,000 | $1.19 | 0.05 | |
| 131 | hormones | 368,000 | $0.68 | 0.03 | |
| 132 | james webb space telescope | 368,000 | $0.07 | 0.03 | |
| 133 | logic | 368,000 | $0.46 | 0.02 | |
| 134 | mammals | 368,000 | $0.31 | 0.01 | |
| 135 | meiosis | 368,000 | $0.10 | 0.00 | |
| 136 | minerals | 368,000 | $1.10 | 0.08 | |
| 137 | neurons | 368,000 | $0.19 | 0.00 | |
| 138 | reflection | 368,000 | $0.20 | 0.00 | |
| 139 | software engineering | 368,000 | $0.69 | 0.10 | |
| 140 | wavelength | 368,000 | $0.06 | 0.22 | |
| 141 | pcr | 368,000 | $0.14 | 0.01 | |
| 142 | aeronautical engineering | 301,000 | $1.06 | 0.05 | |
| 143 | aerospace engineering | 301,000 | $1.06 | 0.05 | |
| 144 | anesthesiology | 301,000 | $1.46 | 0.01 | |
| 145 | cosmology | 301,000 | $0.11 | 0.06 | |
| 146 | electron | 301,000 | $0.04 | 0.01 | |
| 147 | erosion | 301,000 | $0.58 | 0.00 | |
| 148 | event horizon | 301,000 | $0.37 | 0.00 | |
| 149 | experiment | 301,000 | $0.40 | 0.01 | |
| 150 | extinction | 301,000 | $0.17 | 0.00 | |
| 151 | food chain | 301,000 | $0.18 | 0.00 | |
| 152 | genetics | 301,000 | $0.33 | 0.01 | |
| 153 | global warming | 301,000 | $0.55 | 0.03 | |
| 154 | greenhouse gases | 301,000 | $0.57 | 0.03 | |
| 155 | holography | 301,000 | $0.23 | 0.09 | |
| 156 | hydraulics | 301,000 | $0.40 | 0.31 | |
| 157 | hypothesis | 301,000 | $0.78 | 0.00 | |
| 158 | international space station | 301,000 | $0.09 | 0.01 | |
| 159 | kinesiology | 301,000 | $0.74 | 0.03 | |
| 160 | metabolism | 301,000 | $0.36 | 0.15 | |
| 161 | metastasis | 301,000 | $1.74 | 0.02 | |
| 162 | meteorology | 301,000 | $0.63 | 0.01 | |
| 163 | pediatrics | 301,000 | $1.68 | 0.02 | |
| 164 | plate tectonics | 301,000 | $0.02 | 0.00 | |
| 165 | pulmonology | 301,000 | $0.78 | 0.09 | |
| 166 | quasars | 301,000 | $0.03 | 0.33 | |
| 167 | schrodingers cat | 301,000 | $0.02 | 0.01 | |
| 168 | semiconductors | 301,000 | $0.27 | 0.03 | |
| 169 | solar energy | 301,000 | $0.56 | 0.23 | |
| 170 | sonar | 301,000 | $0.14 | 0.08 | |
| 171 | symbiosis | 301,000 | $0.42 | 0.17 | |
| 172 | zoology | 301,000 | $0.20 | 0.11 | |
| 173 | air pollution | 246,000 | $1.73 | 0.02 | |
| 174 | amplitude | 246,000 | $1.52 | 0.17 | |
| 175 | biome | 246,000 | $0.31 | 0.14 | |
| 176 | cell respiration | 246,000 | $0.90 | 0.00 | |
| 177 | cellular respiration | 246,000 | $0.90 | 0.00 | |
| 178 | circadian rhythms | 246,000 | $0.02 | 0.02 | |
| 179 | cloning | 246,000 | $0.02 | 0.01 | |
| 180 | cognitive behavioral therapy | 246,000 | $1.02 | 0.22 | |
| 181 | elasticity | 246,000 | $2.25 | 0.21 | |
| 182 | electrical engineering | 246,000 | $1.15 | 0.09 | |
| 183 | food web | 246,000 | $0.57 | 0.00 | |
| 184 | fractals | 246,000 | $0.24 | 0.02 | |
| 185 | glycolysis | 246,000 | $0.39 | 0.00 | |
| 186 | horticulture | 246,000 | $0.71 | 0.01 | |
| 187 | hubble space telescope | 246,000 | $0.24 | 0.02 | |
| 188 | information technology | 246,000 | $0.23 | 0.17 | |
| 189 | interference | 246,000 | $1.13 | 0.00 | |
| 190 | isotopes | 246,000 | $0.18 | 0.03 | |
| 191 | kinetics | 246,000 | $1.00 | 0.17 | |
| 192 | krebs cycle | 246,000 | $0.08 | 0.00 | |
| 193 | multiverse | 246,000 | $0.45 | 0.00 | |
| 194 | mutation | 246,000 | $0.09 | 0.05 | |
| 195 | observation | 246,000 | $0.53 | 0.00 | |
| 196 | paleontology | 246,000 | $0.74 | 0.00 | |
| 197 | perception | 246,000 | $0.07 | 0.00 | |
| 198 | polymers | 246,000 | $0.51 | 0.02 | |
| 199 | probability | 246,000 | $0.02 | 0.00 | |
| 200 | radiation | 246,000 | $0.16 | 0.00 | |
| 201 | terraforming | 246,000 | $0.62 | 0.06 | |
| 202 | weather forecasting | 246,000 | $0.02 | 0.03 | |
| 203 | wind turbines | 246,000 | $0.11 | 0.44 | |
| 204 | rna | 246,000 | $0.16 | 0.03 | |
| 205 | antioxidants | 201,000 | $0.03 | 0.26 | |
| 206 | autophagy | 201,000 | $0.04 | 0.06 | |
| 207 | biochemistry | 201,000 | $0.44 | 0.02 | |
| 208 | bioluminescence | 201,000 | $0.32 | 0.01 | |
| 209 | biomedical engineering | 201,000 | $0.93 | 0.06 | |
| 210 | carbon cycle | 201,000 | $0.44 | 0.00 | |
| 211 | entomology | 201,000 | $0.52 | 0.00 | |
| 212 | evaporation | 201,000 | $0.42 | 0.01 | |
| 213 | fermentation | 201,000 | $0.08 | 0.03 | |
| 214 | fossil fuels | 201,000 | $1.00 | 0.01 | |
| 215 | geriatrics | 201,000 | $0.29 | 0.01 | |
| 216 | hydroponics | 201,000 | $0.29 | 0.72 | |
| 217 | landslides | 201,000 | $0.27 | 0.00 | |
| 218 | mars rover | 201,000 | $0.39 | 0.01 | |
| 219 | neuroplasticity | 201,000 | $0.04 | 0.03 | |
| 220 | nitrogen cycle | 201,000 | $0.13 | 0.00 | |
| 221 | photons | 201,000 | $0.09 | 0.01 | |
| 222 | prion diseases | 201,000 | $0.02 | 0.00 | |
| 223 | prions | 201,000 | $0.02 | 0.00 | |
| 224 | programming | 201,000 | $0.10 | 0.08 | |
| 225 | solar flares | 201,000 | $0.50 | 0.03 | |
| 226 | stem cells | 201,000 | $0.51 | 0.16 | |
| 227 | taxonomy | 201,000 | $1.37 | 0.00 | |
| 228 | transcription | 201,000 | $0.17 | 0.13 | |
| 229 | turbulence | 201,000 | $0.02 | 0.00 | |
| 230 | water pollution | 201,000 | $2.00 | 0.01 | |
| 231 | wormholes | 201,000 | $0.10 | 0.01 | |
| 232 | acoustics | 165,000 | $0.41 | 0.05 | |
| 233 | actuators | 165,000 | $0.37 | 0.22 | |
| 234 | alleles | 165,000 | $0.08 | 0.00 | |
| 235 | antimatter | 165,000 | $0.15 | 0.00 | |
| 236 | apoptosis | 165,000 | $0.08 | 0.00 | |
| 237 | astrophysics | 165,000 | $1.34 | 0.02 | |
| 238 | cell cycle | 165,000 | $0.55 | 0.00 | |
| 239 | chemical engineering | 165,000 | $0.73 | 0.03 | |
| 240 | chromatography | 165,000 | $0.30 | 0.02 | |
| 241 | composites | 165,000 | $0.36 | 0.15 | |
| 242 | computational fluid dynamics | 165,000 | $1.45 | 0.07 | |
| 243 | crispr | 165,000 | $0.72 | 0.06 | |
| 244 | electromagnetism | 165,000 | $0.11 | 0.11 | |
| 245 | electron configuration | 165,000 | $0.00 | 0.00 | |
| 246 | electronegativity | 165,000 | $0.00 | 0.00 | |
| 247 | epigenetics | 165,000 | $0.22 | 0.10 | |
| 248 | fiber optics | 165,000 | $1.43 | 0.28 | |
| 249 | forensic science | 165,000 | $2.84 | 0.11 | |
| 250 | human evolution | 165,000 | $1.40 | 0.04 | |
| 251 | ideal gas law | 165,000 | $0.47 | 0.00 | |
| 252 | igneous rocks | 165,000 | $0.59 | 0.00 | |
| 253 | immune system | 165,000 | $0.06 | 0.04 | |
| 254 | immunotherapy | 165,000 | $0.57 | 0.23 | |
| 255 | interstellar medium | 165,000 | $0.18 | 0.03 | |
| 256 | invasive species | 165,000 | $1.12 | 0.14 | |
| 257 | linguistics | 165,000 | $0.18 | 0.01 | |
| 258 | marine biology | 165,000 | $2.23 | 0.08 | |
| 259 | microbiology | 165,000 | $0.27 | 0.02 | |
| 260 | natural selection | 165,000 | $0.04 | 0.09 | |
| 261 | newtons laws | 165,000 | $0.35 | 0.00 | |
| 262 | operating systems | 165,000 | $0.26 | 0.02 | |
| 263 | placebo effect | 165,000 | $0.01 | 0.00 | |
| 264 | prosthetics | 165,000 | $0.77 | 0.02 | |
| 265 | radioactivity | 165,000 | $0.00 | 0.00 | |
| 266 | replication | 165,000 | $0.50 | 0.05 | |
| 267 | scientific method | 165,000 | $2.00 | 0.01 | |
| 268 | sedimentary rocks | 165,000 | $0.35 | 0.00 | |
| 269 | stoichiometry | 165,000 | $0.02 | 0.00 | |
| 270 | surveying | 165,000 | $2.78 | 0.09 | |
| 271 | thermodynamics | 165,000 | $0.02 | 0.00 | |
| 272 | topography | 165,000 | $0.25 | 0.00 | |
| 273 | topology | 165,000 | $0.02 | 0.05 | |
| 274 | weather satellites | 165,000 | $0.93 | 0.01 | |
| 275 | zoonotic diseases | 165,000 | $0.35 | 0.01 | |
| 276 | acid rain | 135,000 | $2.00 | 0.00 | |
| 277 | anxiety disorders | 135,000 | $0.15 | 0.11 | |
| 278 | atomic force microscopy | 135,000 | $0.70 | 0.02 | |
| 279 | bernoullis principle | 135,000 | $0.58 | 0.00 | |
| 280 | cartography | 135,000 | $0.20 | 0.01 | |
| 281 | combustion | 135,000 | $0.01 | 0.00 | |
| 282 | commensalism | 135,000 | $0.10 | 0.00 | |
| 283 | criminology | 135,000 | $1.87 | 0.10 | |
| 284 | differential equations | 135,000 | $0.04 | 0.01 | |
| 285 | distillation | 135,000 | $0.32 | 0.03 | |
| 286 | exoplanets | 135,000 | $0.12 | 0.03 | |
| 287 | exoskeletons | 135,000 | $0.21 | 0.61 | |
| 288 | fission | 135,000 | $0.05 | 0.01 | |
| 289 | graphene | 135,000 | $0.15 | 0.03 | |
| 290 | greenhouse effect | 135,000 | $0.54 | 0.00 | |
| 291 | integrated pest management | 135,000 | $0.38 | 0.03 | |
| 292 | la nina | 135,000 | $0.01 | 0.01 | |
| 293 | linear algebra | 135,000 | $0.29 | 0.03 | |
| 294 | metamorphic rocks | 135,000 | $0.00 | 0.00 | |
| 295 | neuroscience | 135,000 | $0.78 | 0.06 | |
| 296 | neutron | 135,000 | $0.23 | 0.01 | |
| 297 | nootropics | 135,000 | $0.99 | 1.00 | |
| 298 | nuclear fission | 135,000 | $0.05 | 0.01 | |
| 299 | oceanography | 135,000 | $0.16 | 0.04 | |
| 300 | optics | 135,000 | $0.43 | 0.12 |