Fossils

Worksheet by Christina Lohr
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Subjects
Science
Grades
9
Language
ENG
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Sort each fossil into the correct category. Original Remains An organism is preserved in its entirety Replaced Remains Remains that are slowly replaced, by rock forming minerals Trace Fossil Impressions left in rock by an organism Molds and Casts If an organism is buried in mud or other sediment and the fossil later dissolves out of the rock a mold remains How old is Earth? 4,600,000 Years 4,600 Years 4,600,000,000 Years 4,600,000,000,000 Years What is the only type of rock that can have a fossil? Igneous Sedimentary Metamorphic During which time period do humans (Homo Sapiens) live? Cambrian Quaternary Jurassic Carboniferous Earth's Eras Match each Era to its description. Precambrian Before most life Paleozoic Age of Invertebrates Mesozoic Age of Reptiles Cenozoic Age of Mammals

Earth Science WMHS Fossils
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