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fossil record JRS

QuestionAnswer
paleontologists: : scientists who use fossils to study history.
• Scavenger: • An organism that feeds upon dead and dying organisms.
• Decomposer: • An organism that breaks down the tissue and/or structures of dead organisms.
• Molds are imprints left from something that was buried
• Casts when sediment leaks into a mold and hardens to form a copy of the original structure
• Mineralization when minerals carried in water build up in the spaces of an organisms and eventually become rock.
• Impressions the imprints left behind in the sediment by an organism such as leaves or soft structures
• Amber: hardened tree sap.
• Tar pit: a pit that collect tar
• Abiotic/Physical Factors • Non-living factors such as erosion, wind and sun exposure.
• Biological/biotic factors • Living factors such as decomposers, scavengers and predators
• Igneous: produced when a molten magma cools
• Sedimentary: layers of small particles compressed together
• Metamorphic any type of rock changed by heat, pressure, or chemical activity
• Uplift: • The process that causes part of the Earth’s crust to rise above surrounding areas. This can cause layers of rock to become exposed at the surface
• Erosion: • Weathering or wearing away of rock and earth (and any fossils they contain) caused by wind, sun and/or water
Created by: Jeska400
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