Continental drift puzzle game
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Tags All tags. Add this game to your web page Share on Website. Join other players talking about games. Visit the Y8 Forum. Scientists study rocks from mountain chains , and the fossils found in them, to understand continental drift. The mountainous terrains of separate continents match up. Background Information. Alfred Wegner was a German geophysicist who formulated the first complete statement of the continental drift hypothesis.
Although he was not the first to suggest that continents have moved about the Earth, his presentation of carefully compiled evidence inspired decades of scientific debate. The coastlines of South America and West Africa seem to match up.
Scientists have found that rocks on the east coast of South America are the same as rocks found on the west coast of Africa. These rocks are different from rocks found in other places on Earth, suggesting that the continents were once connected.
Plant and animal fossils also reveal evidence. There are various examples of fossils found on separate continents and in no other regions. This indicates that these continents were once joined together because the extensive oceans between these land masses act as a barrier for fossil transfer. Examples include: Mesosaurus, Cynognathus, Lystrosaurus and Glossopteris. How did the continents move apart? It is broken into sections, like a cracked egg shell. The sections are called tectonic plates and continents are part of these large plates.
The tectonic plates are floating on top of the molten rock and moving around the planet. When the continents and plates move it is called continental drift. Some plates move into each other, while others move away from each other. The movement of the plates is responsible to the formation of ocean basins, mountain ranges, volcanoes and earthquakes. Over the past years, scientists have continued to find evidence supporting the idea that the Earth was once one supercontinent called Pangea.
Pangea formed before the early Permian Period began million years ago and broke apart approximately million years ago.
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