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christena
science
| Question | Answer |
|---|---|
| the preserved remains or evidence of past living orginisms | fossil |
| the idea that conditions and organisms on Earth change in quick, vioent events | catastrophism |
| a principle stating that geologic processes that occur today are similar to those that occured in the past | uniformitarianism |
| the fossilized carbon outline of an organism or part of an organism | carbon film |
| the impression n a rock left by an ancient organism | mold |
| a fossil copy of an organismmade when a mold of the organism is filled with sediment or mineral deposits | cast |
| the preserved evidence of the activity of an organism | trace fossil |
| scientists who study fossils | paleontologist |
| the age of rocks and geologic features compared with other rocks and features nearby | relative age |
| the principle that in undisturbed rock layers, the oldest rocks are on the bottom | superposition |
| a piece of an older rock tha becomes part of a new rock | inclusion |
| a surface where rock has eroded away,producing a break, or, gap,in the rock record | unconformity |
| matching rocks and fossils from separate locations | correlation |
| represent species that existed on Earth for a short lenght of time, were abundant, and inhabited many locations | index fossil |
| mean the numerical age, in years, of a rock or object | absolute age |
| atoms o fthe same element that have different numbers of neutrons | isotope |
| the process by which an unstable element naturally changes into another element that is stable | radioactive decay |
| half-life | |
| the preserved remains or evidence of past living orginisms | fossil |
| the idea that conditions and organisms on Earth change in quick, vioent events | catastrophism |
| a principle stating that geologic processes that occur today are similar to those that occured in the past | uniformitarianism |
| the fossilized carbon outline of an organism or part of an organism | carbon film |
| the impression n a rock left by an ancient organism | mold |
| a fossil copy of an organismmade when a mold of the organism is filled with sediment or mineral deposits | cast |
| the preserved evidence of the activity of an organism | trace fossil |
| scientists who study fossils | paleontologist |
| the age of rocks and geologic features compared with other rocks and features nearby | relative age |
| the principle that in undisturbed rock layers, the oldest rocks are on the bottom | superposition |
| a piece of an older rock tha becomes part of a new rock | inclusion |
| a surface where rock has eroded away,producing a break, or, gap,in the rock record | unconformity |
| matching rocks and fossils from separate locations | correlation |
| represent species that existed on Earth for a short lenght of time, were abundant, and inhabited many locations | index fossil |
| mean the numerical age, in years, of a rock or object | absolute age |
| atoms o fthe same element that have different numbers of neutrons | isotope |
| the process by which an unstable element naturally changes into another element that is stable | radioactive decay |
| the time required for half of the parent isotopes to decay into daughter isotopes | half-life |