Relacionar Columnas Science Informational ProductVersión en línea Science por Nailah Pichardo-Kpodar 1 Relative Dating 2 Fossil 3 Mold Fossil 4 Fossil record 5 Law of superposition 6 Sedimentary Rock 7 Radiometric Dating 8 Extinction 9 Paleontologist 10 Law of Uniformitarianism 11 Absolute Dating 12 Cast Fossils The Law of Uniformitarianism is used to explain the history of past events on Earth because it's the idea that the same physical laws of today have always existed. The type of rock that most fossils are found in relative dating is the age of the rock layer compared to other layers The law of superposition says each layer of rock is older than the one after or above it, so the further down into the rock layer you go, the older the layers become. Cast fossils are created by the hollow spaces of a mold that is later filled with mineral matter. A mold fossil is dissolved by underground water and it has no internal structure. When an animal or a larger species dies out. a paleontologist finds fossils or studies fossils and where they came from, what animal they were, etc. A fossil record is a timeline or history that is composed of by fossils. absolute dating is the numeric age of a layer or rocks of fossils radiometric dating is getting an age for geologic materials or measuring the age of geologic materials. A fossil is the remains of an animal that existed millions of years ago in a specific type of rock.
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