Matching Pairs Science Informational ProductOnline version Science by Nailah Pichardo-Kpodar 1 Absolute Dating 2 Fossil 3 Law of Uniformitarianism 4 Extinction 5 Cast Fossils 6 Radiometric Dating 7 Relative Dating 8 Mold Fossil 9 Fossil record 10 Paleontologist 11 Law of superposition 12 Sedimentary Rock 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 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. 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 mold fossil is dissolved by underground water and it has no internal structure. radiometric dating is getting an age for geologic materials or measuring the age of geologic materials. relative dating is the age of the rock layer compared to other layers 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 fossil is the remains of an animal that existed millions of years ago in a specific type of rock. The type of rock that most fossils are found in absolute dating is the numeric age of a layer or rocks of fossils
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