| A | B |
| geology | study of the solid earth, includes rocks and minerals |
| hydrology | study of water on the earth |
| meteorology | study of weather and conditions in the atmosphere |
| seismology | study of earthquakes and earthquake activity |
| volcanology | study of volcanos and colcanc activity |
| astronomy | study of space and objects in space |
| paleontology | study of fossils and ancient life |
| chemistry | study of matter and the properties of matter |
| physics | study of matter and energy |
| oceanography | study of oceans in all aspects |
| climatology | study of the earths climate and effects |
| cartography | study of maps in all aspects |
| evolution | study of how things change over a long period of time |
| ecology | study of the enviroment |
| biology | study of life and living things |