This printable word search puzzle contains 18 hidden words in a 24x24 letter grid. Words go horizontally, vertically, backwards, and diagonally. This word search is also available to download as a Microsoft Word document or a PDF.
artificial selection
homologous structure
analogous structure
vestigial structure
natural selection
uniformitarianism
catastrophism
biogeography
heritability
paleontology
adaptation
gradualism
population
evolution
variation
fitness
species
fossil