Tertiary

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Levers – Simple machines – Physics

By |2018-05-31T11:49:33-07:00August 17th, 2017|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 - a fixed object - to move something. A lever helps you move something heavy, or make something go fast. The earliest levers developed [...]

Where are the Rocky Mountains?

By |2018-04-21T11:56:41-07:00June 25th, 2017|Geology, North America|

Rocky Mountains The Rocky Mountains stretch all the way from the southern United States north into Canada. They through Utah, Colorado, Wyoming, Montana, and up into Alberta. What we call the Rocky Mountains is really three different mountain chains, one on top of the other. The oldest mountain chain started more than a [...]

Where are the Himalaya Mountains? India

By |2018-04-21T11:56:45-07:00June 25th, 2017|China, Geology, India|

Himalaya Mountains About 55 million years ago, plate tectonics made the land that is now India break off from what is now Africa. At this time, the first modern mammals like rats and guinea pigs were evolving, and most of the Earth was covered in forests. For five million years India floated slowly [...]

Where are the Alps? Mountains in Europe

By |2019-01-23T09:52:38-07:00June 25th, 2017|Geology, Northern Europe|

The Alps Where are the Alps? The Alps are a long row of mountains dividing southern Europe from northern Europe.  France and Germany are on one side of the Alps, and Italy is on the other side. More about Northern Europe Which mountains are the highest? When did the Alps form? The Alps [...]

Tertiary period – mammals and mountains

By |2018-08-22T05:19:59-07:00June 25th, 2017|Biology, Geology|

Tertiary period: Large animals evolved like moose Dinosaurs become extinct The Tertiary period begins with the catastrophe that killed off the dinosaurs at the end of the Cretaceous Period, about 65 million years ago. And the Tertiary lasts down to 1.8 million years ago. Mammals become more common With nearly all of the dinosaurs [...]

Reptile and Mammal Skeletons – Evolution and Biology

By |2018-04-16T09:09:50-07:00May 28th, 2017|Biology|

Evolution of skeletons: Skeleton of a dinosaur Evolution of skeletons From frogs, there evolved reptiles like crocodiles and dinosaurs. Some of these reptiles lived mostly or entirely on land, so they needed stronger bones that could hold them up when they weren't in the water. And most reptiles ate meat, so, like fish, [...]

Early Humans – Evolution Science

By |2018-09-02T13:44:52-07:00May 26th, 2017|Africa, Biology|

Early humans: Skeleton of early human Lucy, from about 3.2 million years ago When did the first humans evolve? About six million years ago, the earliest people evolved from earlier primates in East Africa. Read more about the primates Read more about the Tertiary Period Why did people evolve from earlier primates? People [...]