| A | B |
|---|
| era | a large division of time |
| archaeology | the study of objects to learn about past human life |
| artifact | an object made by people |
| paleontology | the study of fossils |
| fossil | plant or animal remains that have been preserved from an earlier time |
| anthropology | the study of human culture and how it develops over time |
| species | a class of individuals with similar physical characteristics |
| found | to create or set up something |
| precise | exact |
| integral | essential; necessary |
| decade | a group or set of 10 years |
