Fossils are imprints of long dead plants and animals found in rocks.
They are important because they were formed many millions of years ago. This means they can tells how plants and animals on earth used to look.
Fossils are good evidence for evolution becuase they show that living things have changed over time.
Find out how dinosaurs become fossils in the video below.
To find out how fossils are made look at the PowerPoint below.
Remember that fossils are not bones – the bones have been turned to rock by fossilisation. What do you think has happened to all the skin, organs and other soft tissue in the millions of years since the fossil was formed?
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