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vocab cards3
| Question | Answer |
|---|---|
| relative age | the age of a event or object relation to other events |
| rock cycle | forces insid the earth that form change and break down rocks |
| index fossils | fossils that were common. lived in many areaas. lived during specific times. |
| absolute age | the actual age of an event or object |
| half life | lenght of time that canges an unstable form into another form |
| uniformintarism | earth is always changing its place (theory) |
| geologic time scale | divides the arths history into intervals of time |
| original remains | fossils that are actualy bodies or body parts of organism |
| ice core | cylindrical sample that shows the layers of snow and ice that has built up over the years |