FOSSILS

Fossils give a picture glance about earth’s life as long as more than thousands years. Fossils is a key to know how is the surface of earth was change from time to time.

• How is fossils form?
When a animal or plant dead, the soft parts will be eat by the other animals or it will be putrid fastly, while the hard parts (teeth, bone, eggshell, or wood) saved in mud or sand and then it will be hard and become a stone layer. Sometimes the hard parts of body will gone and leave empty mold, then it the minerals fulled, then it become a fossils.

• Benefit of fossils
1. Helping to arrange the history about earth’s life at past.
2. Giving information about the climate at past.
3. To definite the age of stone.

• Kinds of fossils
- Trilobita
- Snail (gastropoda)
- Plant fossils
- Lampshell (brachiopoda)
- Fish fossils
- Reptile fossils
- Human fossils