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CH 10

vocabulary

QuestionAnswer
Fossils Are the preserved remains or evidence of ancient living things
Catastrophism Is the idea that conditions and organisms on earth change in quick, violent events
Uniformitarianism States that geologic processes that occur today are similar to those that have occurred in the past
Carbon film Is the fossilized carbon outline of an organism or part of an organism
Mold Is the impression in a rock left by an ancient organism
Cast Is a fossil copy of an organism made when a mode of the organism is filled with sediment or mineral deposits
Trace fossil Is the preserved evidence of the activity of an organism
Paleontologists Use the principle of uniformitaranism to learn about ancient organisms lived
relative age is the age of rocks and geologic features compared with other rocks and features nearby
surperposition is the first principle that in undisturbed rock layers the oldest
Inclasion a piece of on older rock that becomes part of a new rock is called Incuion
unconformity is a surface where rock has eroded away producing a break or gap in the rock record
correlation matching rocks and fossils form separate locations is called correlation
Index fossils represent species that existed on earth for a short length of time were a bunny and inhabited many locations
absolute gap to mean me rumerical orge in years of a rock or object
isotpoes are atoms of the same element that have different himbers of heutrohs
radioactive decay is the process by which an unstable element naturally changes in to another element that is staple
half-life is the time required for half of the parent isotopes to decoy do-ughter isotopes
Created by: star K
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