Levers – Simple machines – Physics
Levers: An orangutan child using a stick as a lever What is a lever? A lever is basically just a long stick that you push or pull against a fulcrum [...]
Levers: An orangutan child using a stick as a lever What is a lever? A lever is basically just a long stick that you push or pull against a fulcrum [...]
Early Anasazi (Pueblo) pottery from about 550-800 AD Early Woodland The third period of North American history, after the Archaic period, is the Woodland period. What happened in the Archaic period? [...]
Paleo-Indians probably travelled along the Pacific coast of North America First people in North America Archaeologists call the time just after people first came to North America , about 20,000 BC, [...]
Chinook history involved making baskets (University of Washington - cedar root basket) When did Native people come to the Pacific Northwest? People have lived in the Pacific Northwest since the Paleo-Indian period, [...]
Montana landscape with a moose calf wading People we call Athabascans or Dene lived in Blackfoot territory (modern Montana and Canada) in the Paleo-Indian period, by around 10,000 BC. They lived by hunting and gathering. They [...]
Atlatl history: this is an ancient atlatl What is an atlatl? An atlatl, or spear-thrower, is a wooden or bone stick with a hook on one end that you can [...]
When did people start fishing? History of fishing: Stone carving of a fish (San Francisco, ca. 7000 BC) People probably began fishing in Africa, very early on in human history. [...]