Matching Pairs Fossils VocabularyOnline version 3rd Grade by Sharon Ferguson 1 limestone 2 fossil imprint 3 fossil fuels 4 fossilized 5 imprint 6 petrified wood 7 cement 8 fossils a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms. are the remains and traces of ancient organisms. is a fossil in which the organic remains have been replaced by minerals in the slow process of being replaced with stone. a powdery substance made with calcined lime and clay. It is mixed with water to form mortar or mixed with sand, gravel, and water to make concrete. preserved to become a fossil. are formed from an organism moving in some way, leaving behind a trace or track. These tracks are preserved when the clay/silt dries slowly and is covered by other sediment. impress or stamp (a mark or outline) on a surface. a hard sedimentary rock, composed mainly of calcium carbonate or dolomite, used as building material and in the making of cement.
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