I believe his first observation was the way the continents of South America and Africa "fit" together like a jigsaw puzzle (although he was not the first to realize this). He also made note of fossil discoveries in Africa which corresponded to those in South America. Finally, he began his own research which actually alligned rock formation/componants from one side of the Atlantic with the other.
the observation of finding the fossil of the reptile Mesosaurus in both Africa and South America. wegener also found the fossil of the fern Glossopteris in Africa,Australia, India, south america, and Antarctica.
He was curious about the relationship of the continents and so he hypothesized that Earth's continents had moved.
cum thats what led it :)
One of His Theorys of continental drift was, that you could fit the continents back together if you had pictures. Also it would make up Pangea
No, the hypothesis that continents 'drift' was first put forward by Abraham Ortelius in 1596 and was fully developed by Alfred Wegener in 1912. Koppen is most widely known for his development of a climate classification system. More information follows on the Related Link listed below:
It is important to be able to test the hypothesis because testing your hypothesis is how you prove or disprove your theories. If it is disproved then you can change your hypothesis.
If you develop an experiment that truly demonstrates that the hypothesis is wrong*, then the hypothesis will lose its acceptance in the scientific community. * Such an experiment would have to be repeatable by other scientists AND accepted by interested scientists as a proof that the hypothesis is wrong.
Alfred Wegener was the first person to fully develop a theory that all the continents of the world were once part of the same giant landmass (or supercontinent) called Pangea; which broke apart with the constituent parts drifting away from one another and arriving at their current locations. This drift is still occurring today and some scientists believe that the continents will eventually recombine to form another supercontinent called Pangaea ultima.
The observation that led Alfred Wegener to develop the hypothesis of continental drift was that the continents looked like a puzzle that could fit together and then found out that fossils of similar kind and whats left of similar plants were found on opposite sides of the world.
One of His Theorys of continental drift was, that you could fit the continents back together if you had pictures. Also it would make up Pangea
hotspots on the ocean floor
hotspots on the ocean floor
No, the hypothesis that continents 'drift' was first put forward by Abraham Ortelius in 1596 and was fully developed by Alfred Wegener in 1912. Koppen is most widely known for his development of a climate classification system. More information follows on the Related Link listed below:
About a century ago, Alfred Wegener noticed that some of the world's continents actually looked like they could fit together like puzzle pieces, even though they were hundreds or even thousands of miles apart. Additionally, fossils found in these "matching" areas seemed to be very similar. This led Wegener to develop his theory of continental drift, which most scientists today accept.
Theory
Nothing.
Wegener first noticed that it looked like South America coastline could "fit" into Africa's. After that he analysed both their continental shelve's and this showed an even closer fit. The thrid observation that brought about his theory of continental drift was that he found fossils of the same animals (can't remember any names off the top of my head sorry) in both Argentina and east Somalia, Africa. The animal is the Mesosaurus, a fossil known to live 270 million years ago. This animal was very unlikely to swim across the ocean, so the continents had to conjoined one time in the past. Hope this helps :)
To develop a hypothesis you need to observe and make an educated guess, by starting the sentence with "If...then.....because...."
It is important to be able to test the hypothesis because testing your hypothesis is how you prove or disprove your theories. If it is disproved then you can change your hypothesis.
The best way to make a hypothesis is to educate yourself on the topic. Then develop a question that you can answer.