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Fossils 8:1

Fossils Vocabulary

TermDefinition
fossil a trace of an ancient organism that has been preserved in rock
paleontologist a scientist who studies fossils to learn about organisms that lived long ago
sedimentary rock a type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together
mold a fossil formed when an organism buried in sediment dissolves, leaving a hollow area
cast a fossil that is a copy of an organisms shape, formed when minerals seep into a mold
petrified fossil a fossil in which minerals replace all or part of an organism
carbon film a type of fossil consisting of an extremely thin coating of carbon on rock
trace fossil a type of fossil that provides evidence of the activities of an ancient organism
scientific theory a well-tested concept that explains a wide range of observations
evolution the process by which all the different kinds of living things have changed over time
extinct a volcano that is no longer active and is unlikely to errupt again; describes a type of organism that no longer exists anywhere on Earth
Created by: DAddison
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