Migration to the Americas ch.1, sec. 1 - PowerPoint PPT Presentation

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Migration to the Americas ch.1, sec. 1
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Migration to the Americas ch.1, sec. 1

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  1. Migration to theAmericasch.1, sec. 1 Vocabulary Archaeology artifact nomad Migration maize carbon dating culture

  2. Journey From Asia • 1400’s—Europeans arrived & found Native Americans living here. • Scientists still determining how first people got here. • ___________--study of ancient peoples. • Learn about past from ______________ left behind. • Tools, weapons, carvings, etc.

  3. Crossing Land Bridge • Believed people came across land that sank into sea. • Strip of land called __________. • Connected Asia & Americas • Earth gone through several ice ages. • Ice Age--__________________________________________. • Last one began about 100,000 yrs ago & lasted ‘til about 12,000 yrs ago. • Lower sea level exposed strip of land. • Beringia lies under the ____________.

  4. Wooly Mammoth Scimitar Cat

  5. Searching for Hunting Grounds • Early Americans were _______. • Nomads—______________________________________. • Crossing of land bridge was a ________. • Migration—large number of people moving from one place to another. • Traveled far east as Atlantic Ocean, far south as tip of South America. • Legends of beasts: • Saber-tooth tiger. • Wooly mammoth • Mastodon

  6. Hunting For Food • Skilled hunters: armed w/________. • Hunted in groups. • Used every part of animal. • 15,000 yrs ago . . . temps started rising. • Glaciers melted & ocean levels rose. • Americas cut off from ______. • Large animals started disappearing (over-hunted or change in climate). • Had to find other _______ of food.

  7. Settling Down • Large animals disappeared: • started hunting smaller animals, catching fish, gathering plants. • 9,000 yrs ago—people from Mexico learned to plant ______ (early form of corn). • Harvests provided steady, reliable sources of food. • People started staying in one area (some remained nomadic). • Scientists discovered villages: • Used method called ______________. • Measures amount of radioactive carbon from substance that was once alive. • Provides an estimate of artifact’s age. • People living in one area developed own _______, or way of life.