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