| A | B |
|---|
| prehistory | history that happened before the invention of writing |
| archaeologists | scientists who locate and study the things left behind by early people |
| fossils | the remains of once living things |
| excavate | to uncover by digging |
| artifacts | objects made by humans |
| extinct | no longer living |
| migration | movement from one place to another |
| Ice Age | a long period of bitter cold |
| glacier | a huge moving sheet of ice |
| culture | a way of life |
| domesticate | to tame living things for people's use |
| livestock | domesticated animals such as sheep, goats and cows |
| nomads | people with no settled home |
| agriculture | the raising of domesticated plants and animals |
