work of an archaeologist - key terms:

work of an archaeologist - key terms:

1. Artefact : an item found under ground from history

2. Carbon dating : using the radioactive carbon in an item to find out how old it is

3. primary source : is something that comes directly from the past e.g a letter

4. secondary source: it contains info. about a period in history e.g history book

5. Pre-History : time before evidence of the past was written down

6. Rescue/salgyvage archaelogy: when an old building is being replaced , archaelogists will see if they can learn anything from the place long ago

7. Museum: artefacts stored here

8. archive: stores papers like letters or diaries

9. stratigraphy: date artefacts by looking at the layer of earth which it was found

10. dendrochronology: count a piece of woods rings , each ring equals one year