Continental Drift

1.Millions of years ago all the continents were joined together.

2. The supercontinent was called pangea

3. The continents broke up and moved upart

4. The pangea split up into 2 - the northern and southern continents

5. These were called laurasia and gondwana land

6. What is the evidence

1. Planet and animal fossils are similar on different continents.
2. There are similar rocks in different parts of the world.
3. The continents fit into a jigsaw.

The continental drift is about our world years ago was connected this was founded by German meteorologist Alfred Wegener. He had a theory that the world was connected and his proof was that the world was a jigsaw puzzle as you can see south america and Africa fits into each very well and this was called Pangaea he also had another 3 evidence to prove his discovery.

The second one is fossils there were reptiles called measures, measures lived on Africa and after there extinction scientist found fossils but on south america and Africa some believed that they had swam across but Alfred said that it was to long for the reptiles to swim and they were also freshwater creatures.

Evidence 3 in the northern Atlantic and the northern of europe you can see that the mountains used to be connected and when the continents drifted they were ripped apart some believed that the mountains grew at the same time but that was unlikely.

Evidence 4 Alfred read about past climate data like cold, hot, warm. Alfred first looked into glacier, glaciers are big chunks of ice that move slowly across the earth's surface and they form on the coldest part of the earth but today they are restricted to the highest mountain tops and in the south and north pole but there is something strange when glaciers move on mountains or on the surface they leave scratches called glacial striations and in South america and Africa in the tropical regions you will find glacial striations in the bedrock and this was believed that these continents weren't always tropical they were connected to the south pole and glaciers moved there.

Alfred dug deeper into his research he discovered coal, Bituminous Coal it is used for fossil fuel what scientist know is that this coal is made from compacted plant remains. So imagine that tropical plants dying and compacted after many years into coal but this coal was found in Antarctica, northern Europe, Indonesia, and more these parts of the world are not tropical climates.

Alfred wegener made a book about his discovery called The origin of continents and oceans but sadly he died before he could present it his discovery to the world and it was only after he died scientist believed him.