| A | B |
|---|
| a long, cold period of time when thick sheets of ice covered the earth | the Ice Age |
| thick sheets of ice that cover parts of the earth | glacier |
| where the first Americans came from | Asia |
| a narrow waterway that connects two larger bodies of water | strait |
| the reason the people crossed over from Asia | they followed animal herds |
| the reason people were able to survive during the Ice Age | they discovered how to make and use fire to cook their food and stay warm |
| separates North America from Asia today | Bering Strait |
| large Ice Age animal hunted by the first Americans | Wooly Mammoth |
| the dry land that probably joined Asia and North America during the Ice Age | land bridge |
| a culture that has developed complex systems of government, religion, and learning | civilization |
| the way a people live, think, believe, and feel | culture |
| first people in the Americas to develop a system of writing | Mayas |
| built an empire in the Andes Mountains | Incas |
| capital city of the Incan empire | Cuzco |
| how the Aztec people fed their gods | human sacrifices |
| the Aztec capital, one of the biggest cities in the world | Tenochtitlan |
| made a very accurate calendar and were excellent scientists and mathematicians | Mayas |
| why the Mayas abandoned their cities | the reason is still a mystery |
| the most successful early farmers who lived in what is now southern Mexico and Guatemala | Mayas |
| people who at one time conquered and ruled over 12,000,000 people | Aztecs |
| created a large empire in central Mexico | Aztecs |
| created an empire that stretched for more than 2000 miles and was connected by 10,000 miles of paved roads | Incas |
| their ruler lived in a golden palace | Incas |
| the people made beautiful jewelry and wove wool cloth | Incas |
