Fossils. Tell of Long Ago. Fossils are animals or plants that lived a very long time ago. After they died, they turned to stone. How do animals and plants become fossils when they die?. Most don’t…they just rot and disappear, often in swampy forest soil called peat .
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Tell of Long Ago
Most don’t…they just rot and disappear, often in swampy forest soil called peat.
The peat with the leaf hardens into a rock, called coal. Coal is a fossil too.
Thousands of years go by, the mud piles up in layers and the weight of the mud presses down on the bones. The mud turns to rock.
The water seeps into all the tiny holes in the fish bones.
Some fossils are actual parts of plants or animals that have turned to stone.
Sometimes a fossil is only an imprint of a plant or an animal.
Some are found in the frozen ground of the Arctic, like the bones of the ancient mammoth.
The sap hardened and became a fossil known as amber. The fly was preserved in the amber.
Fossils tell us about the past.
Open Court Reading 2002, Level 2, Unit 4
Created by Carol Potter, 2005