| A | B |
|---|
| Petrifaction | The conversion of organic material into stone |
| Resin | A sticky, liquid substance that usually hardens when exposed to air |
| Extinct | A term applied to a species of plant or animal that was once living but now is not |
| Fossil record | The sum total of all the fossils on the earth |
| The type of rock in which fossils are usually found | Sedimentary rock |
| Most fossils would not be formed without _________. | water |
| What creatures make up 95% of the fossil record? | clams and other hard-shelled animals |
| Many of the fossils and plants that we find are of plants and animals that are __________ today | alive |
| The fossils found in one layer of stratified rock can be considerably __________ than the fossils found in another layer of the same stratified rock. | different |
| Uniformitarianism | The view that most of earth's geological features are the result of slow, gradual processes that have been at work for millions or even billions of years |
| Catastrophism | The view that most of earth's geological features are the result of large-scale catastrophes such as floods, volcanic eruptions, ect. |
