A ____ is the preserved remains or traces of a dead ____ and they are usually found in ____. Fossils are formed through a process called ____, which takes many, many years to happen and can only happen if the conditions are just right. Most fossils that are discovered are from creatures that were alive ____ of years ago, but fossils can be made of creatures that were alive more recently. Fossils are useful to ____, scientists and historians as they help us to learn more about animals and plants that lived long ago.

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