Relacionar Columnas Science Informational ProductVersión en línea Science por Nailah Pichardo-Kpodar 1 Law of superposition 2 Relative Dating 3 Law of Uniformitarianism 4 Fossil 5 Absolute Dating 6 Fossil record 7 Radiometric Dating 8 Cast Fossils 9 Paleontologist 10 Extinction 11 Sedimentary Rock 12 Mold Fossil A fossil is the remains of an animal that existed millions of years ago in a specific type of rock. A fossil record is a timeline or history that is composed of by fossils. Cast fossils are created by the hollow spaces of a mold that is later filled with mineral matter. a paleontologist finds fossils or studies fossils and where they came from, what animal they were, etc. absolute dating is the numeric age of a layer or rocks of fossils relative dating is the age of the rock layer compared to other layers 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. radiometric dating is getting an age for geologic materials or measuring the age of geologic materials. When an animal or a larger species dies out. The type of rock that most fossils are found in A mold fossil is dissolved by underground water and it has no internal structure. 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.
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