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