Fossils
1. When animals die, their bones normally rot away.
2. Any preserved part of an ancient living thing is called a fossil.
3. The preserved footprint of an ancient creature is also a fossil.
4. A mold fossil is a model of another object.
5. A cast fossil closely resembles the original object.
6. Another word for rotting or spoiling is decomposing.
7. The body part most likely to have become a fossil is a bone.
8. An animal track made in soft mud resembles a mold fossil.
9. Teeth are more likely to become fossils than muscle because they are less likely to decompose.
10. One problem with studying ancient life through fossils is that fossils only provide certain kinds of information.
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