Fossils are dead animals or plants. They are usually skeletons found embedded in rock. Sometimes fossils are footprints or poo. Small animals or insects get stuck in tree sap which hardens and traps them forever. Large animals can get trapped in ice, or their carcass gets trapped in larger of rock. Over thousands of years, pressure builds up and the skeleton is dissolved by water under the ground. Next the mould left is filled with minerals that form rock. This rock shape is fossil an exact replica of the dinosaur. This process takes 10,000 years. Palaeontologists find fossils when the top layer of dirt or rock washes away.
Palaeontologists - People who study dinosaurs.
Inheritance - something you get from your ancestors.
Adaptation - Change.
Evolution - Change over time.
Trait - Something that belongs to a person
Fossilised
Fossilising
Fossils
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