S: (n) natural science (the sciences involved in the study of the physical world and its phenomena)
S: (n) life science, bioscience (any of the branches of natural science dealing with the structure and behavior of living organisms)
S: (n) chemistry, chemical science (the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions)
S: (n) physics, natural philosophy (the science of matter and energy and their interactions) "his favorite subject was physics"
S: (n) physics, physical science (the physical properties, phenomena, and laws of something) "he studied the physics of radiation"
S: (n) earth science (any of the sciences that deal with the earth or its parts)
S: (n) cosmography (the science that maps the general features of the universe; describes both heaven and earth (but without encroaching on geography or astronomy))