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What is plate tectonics? Earthquakes and volcanoes

By |2018-04-18T09:54:07+00:00September 21st, 2017|Geology|

The world as seen from space (flattened out) When you look at a map of the world, it seems as though it was always like that - North America on top of South America, Europe north of Africa, Australia off at the bottom right. But really all of the dry land on Earth moves around like floating shapes about 60 miles [...]

Earthquakes and algae – the planet Earth

By |2018-05-31T11:49:27+00:00August 18th, 2017|Physics|

Molten lava Most of the molecules that smashed together to make the Earth were iron. The smashing together released a lot of heat, so the whole center of the Earth is made of hot melted iron. Because iron is heavier than most other metals, it sank to the center of the Earth. Lighter molecules like silicon and [...]

Which mountains are the highest?

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

Up in the Alps in Switzerland Which mountains are the highest in the world? Practice graphing and see how much higher some mountain chains are than others. The highest peaks of each mountain range are below: Appalachian Mountains: 2037 meters above sea level Alps: 4810 meters Rocky Mountains: 4399 meters Himalaya Mountains: 8850 [...]

Where are the Alps? Mountains in Europe

By |2018-04-21T11:56:39+00:00June 25th, 2017|Geology, Northern Europe|

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. The Alps formed about 34 to 23 million years ago, in the Tertiary era. The African tectonic plate bumped into [...]

Tertiary period – mammals and mountains

By |2018-08-22T05:19:59+00:00June 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 [...]