| __ | 1. | absolute dating | | A. | different layers in the earth mark different time periods |
| __ | 2. | dendrochronology | | B. | the longer bones are buried the more of this they absorb |
| __ | 3. | dendrochronology | | C. | using C14, we can work out when something died |
| __ | 4. | DNA analysis | | D. | another word for tree-ring dating, with one ring per year |
| __ | 5. | Fluorine dating | | E. | tells us about the atmosphere, from the trapped air inside |
| __ | 6. | ice-core sampling | | F. | can be used for wooden artefacts as well as local trees |
| __ | 7. | palynology | | G. | tells us the type of living organism it was |
| __ | 8. | Radiocarbon dating | | H. | determining if an object is older or younger than something |
| __ | 9. | relative dating | | I. | studying microscopic organic compounds, like pollen, in soil |
| __ | 10. | Stratigraphy | | J. | gives the age of the object as precisely as possible |