Word, Definition, Fossil, the remains or traces of a living thing that lived long ago and were preserved in rock, sediment, or other material. living thing, Adaptations, physical features or treaits that help an organism survive in its environment (such as sharp teeth for eating meat or flat teeth for grinding plants.), Evidence, information or clues that help scientists learn about plants, animals, or environments from long ago (for example, fossils showing what an organism ate or where it lived.), Palenontologists, scientists who study fossils to learn about plants, animals, and environments from the past. , Carnivores, animals that eat meat, often shown by having sharp teeth in fossils. , Omnivores, are animals that eat both plants and animals. , Cast, a fossil formed when a mold fills with sediment and hardens, creating a copy of the original organism's shape. , Herbivores, animals that eat only plants, often shown by having flat teeth for grinding. , Fossil Fuels, natural fuels formed from the remains of plants and animals that lived long ago, such as coal, oil, and nautral gas. , Imprint, a mark or impression left behind by a living things, such as footprints or leaf shapes pressed into mud that later hardens into rock., Mold, hollow shape left in rock after and organism decays, showing the outline of the organism. , Amber Fossil, a fossil formed when a small organism becomes trapped in tree sap that hardens into amber. , Extinct, a term used to describe plants or animals that no longer live anywhere on Earth..

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