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Science Ch. 10
vocab
| Term | Definition |
|---|---|
| Paleontologist | Scientist who study fossils |
| Catastrophism | The idea that conditions and creatures on Earth change in quick violent ways |
| Trace Fossil | the preserved evidence of the activity of an organism |
| Cast | a fossil copy of an organism made when a mold of the organism is filled with sediment or mineral depoosits |
| How does a mold form? | Sediment hardens around a buried organism, making an impression in the shape of the organism |
| Mold | the impression in a rock left by an ancient organism |
| Clue about HOT climate change | ferns |
| Fossils | the preserved remains or evidence of ancient living things |
| Mineral Replacements | replicas, or copies, of organisms form when minerals in the groundwater fill the pore spaces or replace tissues of dead organisms |
| Carbon Film | the fossilized carbon outline of an organism or parts of an organism |
| Preserved Remians | Where some of the actual remains are preserved as fossils |
| Conditions for forming a fossil | 1. hard parts 2. buried quickly |
| Clue about COLD climate change | woolly mammoth |
| Uniformitarianism | states that geologic processes that occur today are similar to those that have occurred in the past |