First Humans
Which continent did the first humans come from?
Africa
What is the Big Bang Theory?
The idea that at one point in time an explosion occurred that created all the galaxies and solar systems. Astronomers believe this because of the redshift and light from galaxies that show space is stretching as the light moves away from us.
Were humans already in North America, or did they have to migrate?
Humans had to migrate.
What was the land bridge humans crossed to get to North America from Russia?
Beringia Strait
How do scientists believe water got on Earth?
Meteorites carried water to Earth for millions of years.
Around how long ago do scientists believe the first humans lived in North America?
30,000-15,000 Years ago
What animals did the first Americans hunt for food?
Mammoth and Bison
What is causing the continents?
Magma shooting out from the Earth's core into Volcanos.
Where did the first Americans come from?
Asia and Australia