| A | B |
|---|
| glaciers | very large areas of ice |
| irrigation | making water flow to dry land for crops |
| hunter-gatherers | early humans who hunted animals and gathered seeds and plants |
| agriculture | growing crops & raising animals for people to eat |
| crops | plants, like corn, that a farmer grows. |
| the Stone Age | When humans made tools & weapons from stone. |
| the Ice Age | when glaciers covered much of the earth. |
| ceneiform | the system of writing that Sumerians used. |
| Babylonia and Assyria | the biggest & most important Mesopotamian civilizations |
| Nineveh | the capital of Assyria, known for great learning |
| invaders | people who come to a country from another place to take over by force |
| society | a group of people living together |
| ancient | something that is very old |
| pharaoh | ruler of Egypt |
| hieroglyphics | Eqyptian picture writing. |
