Difference between revisions of "Fossil"
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| − | : Modern horse fossils are only found in rocks younger than | + | : Modern horse fossils are only found in rocks younger than 2 million years old. |
: They are around 6 feet tall, have hooves and a large nose. | : They are around 6 feet tall, have hooves and a large nose. | ||
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: [[Fossil]]s are only found in [[sedimentary]] rocks but not in [[igneous]] rocks. | : [[Fossil]]s are only found in [[sedimentary]] rocks but not in [[igneous]] rocks. | ||
: It is very rare to find a complete [[fossil]] of a large [[animal]]. Most [[fossil]]s of [[animal]]s actually have the bones from lost of different members of the same [[species]]. | : It is very rare to find a complete [[fossil]] of a large [[animal]]. Most [[fossil]]s of [[animal]]s actually have the bones from lost of different members of the same [[species]]. | ||
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| + | ==Key Stage 4== | ||
| + | ===Meaning=== | ||
| + | [[Fossil]]s are | ||
Revision as of 23:14, 20 November 2018
Contents
Key Stage 2
Meaning
A fossil is a piece of a dead creature that has turned into rock over millions of years.
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 animals it is usually only the bone that becomes a fossil.
Evidence of Evolution
- Fossils show us many creatures that do not exist anymore.
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| The Tyrannosaurus Rex is a Dinosaur that became extinct 66 million years ago. | The Giant Sloth lived in North America and became extinct 10,000 years ago at the end of the last Ice Age. |
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| The Dimetrodon became extinct long before the Dinosaurs even existed. | The Moa has only been extinct for about 500 years. |
- Fossils appear slightly different as you dig into older rocks. When you dig far enough the oldest fossils look very different to the modern creatures.
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Key Stage 3
Meaning
Fossils are the remains of a dead organisms that became trapped in sedimentary rock and turned into rock themselves over millions of years.
About Fossils
- Fossils are only found in sedimentary rocks but not in igneous rocks.
- It is very rare to find a complete fossil of a large animal. Most fossils of animals actually have the bones from lost of different members of the same species.
Key Stage 4
Meaning
Fossils are