The hard material, natural substance made of 1 or more minerals and sometimes some organic materials.	Rock
Is rock that forms when layers of weather rock commemorates, and organic material hardened	Sedimentary rock
Is a complete living thing	Organism
Is any part or trace of a living organism that is naturally preserved after it dies	Fossil
Means to rot away	To decompose
Is a fossil formed when part of the living organism to caves and is replaced by minerals that harden in to rock	Petrified fossil
Is the imprint of an organism that has been pressed into a rock	Mold
Is a fossil that is a replica of the shape of an organism formed by sediment that has been pressed into a mold	Cast
Is a fossil formed when plants decay underneath the weight of sediment and leave an image or outline of themselves on the rock	Carbon film fossil
Is a fossil that is formed when something that an organism has left behind. Examples include footprints, a hole where an animal lived, or droppings	trace fossil
Is sap from a plant that is hardened into a yellow, gem like substance	Amber
Is permanently frozen soil	Permafrost
Is to Gradually develop	Evolve
Is the scientific study of fossils	Paleontology
Are scientists to study fossils	Paleontologists
Is a place where paleontologist dig for fossils	Site
Is the process of removing fossils from the rock around them	Excavation
Is when the last of a certain plant or animal dies. Some reasons for extinction are climate changes, changes and diet, limited amounts of food, we're hunted by man	Extinct

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