This printable crossword puzzle on the topic of Rocks & Minerals has 13 clues. Answers range from 4 to 16 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
preserved remains or traces of organisms
the type of rock fossils are usually found in
a hollow area in sediment in the shape of an organism or part of an organism
a solid copy of the shape of an organism
fossils in which minerals replace all or part of an organism
an extremely thin coating of carbon on rock
provide evidence of the activities of ancient organisms
fossils formed when organisms become trapped in tar, ice, or resin
the hardened resin, or sap, of evergreen trees
scientists who study fossils
a well-tested concept that explains a wide range of observations
the gradual change in living things over long periods of time
an organism that no longer exists and will never again live on Earth