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==Key Stage 2==
===Meaning===
A '''fossil''' is a piece of a dead creature that has turned into [[rock]] over millions of years.
: Singular [[Noun]]: '''Fossil'''
: Plural [[Noun]]: '''Fossils'''
: [[Adjective]]: '''Fossilised'''
===About Fossils===
: A '''fossil''' begins as a creature that dies and falls into mud or sand.
: Over millions of years the mud or sand turns into a [[rock]] with the creature trapped inside.
: The creature is replaced by minerals leaving a [[rock]] that is the same shape as the creature.
: In [[animal|animals]] it is usually only the bone that becomes a '''fossil'''.
==Key Stage 3==
The remains of a dead creature that have been turned into [[rock]] over millions of years.