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Science Chapter 4
Bleh
Term | Definition |
---|---|
Fossil | traces or remains of living organism. |
Original Remains | Fossils that are actual body parts of organisms. |
Ice Core | Tubular sample that shows and ice that have built up over thousands of year. |
Relative age | The age of an event or object in relation to other events or objects. |
Index fossil | Fossils of organism that were common that lived and that existed only during specific spans of time. |
absolute age | The actual age of an event or object. |
Half-life | legnth of time it takes for half the atoms |
uniformitarianism | idea that the same effects on the earth that happened millions of years ago, continue to affect us |
Geologic time scale | timeline divided into intervals depending on major events |