natural science - the sciences involved in the study of the physical world and its phenomena

fossilology, palaeontology, paleontology - the earth science that studies fossil organisms and related remains

geology - a science that deals with the history of the earth as recorded in rocks

meteorology - the earth science dealing with phenomena of the atmosphere (especially weather)

oceanography - the branch of science dealing with physical and biological aspects of the oceans

limnology - the scientific study of bodies of fresh water for their biological and physical and geological properties

geographics, geography - study of the earth's surface; includes people's responses to topography and climate and soil and vegetation