chapter 10 Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
| Term | Definition |
| Fossil | Preserved remains or evidence of ancient living things |
| Catastrophism | Idea that conditions and organism on earth change in quick, violent events |
| Uniformitarianism | Stages that geologic processes that occur today are similar to those that have occured in the past |
| Carbon Film | The fossilized carbon outline of an organism or part of an organism |
| Mold | The impression in a rock left by an ancient organism |
| Cast | Fossil copy of an organism made when a mold of the organism is filled with sediment or mineral deposit |
| Trace Fossil | Pressed evidence of the activity of an organism |
| Paleontologist | Scientist who study fossil |
| Relative Age | The age of rocks and geologic features compared with other rocks |
| Superposition | The principle that in undisturbed rock layers, the oldest rocks are on the bottom |
| Inclusion | Piece of an older rock that becomes part of a new rock |
| Unconformity | A surface where rock has eroded away, producing a break, or gap, in the rock record |
| Correlation | Matching rocks and fossils from separate locations |
| Index fossil | Species that existed on earth for a short lenght of time, were abundant, and inhabited many locations |
| Absolute Age | Numerical age in years of a rock or object |
| Isotope | Atoms of the same element that have different numbers of neurons |
| Radioactive Decay | Process by which an unstable atomic nucleus loses energy by radiation |
| Half-Life | Time required for half of the parent isotopes to decay into daughter isotopes |
Created by:
pinkteddybear444
Popular Earth Science sets