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    Thinking Critically about Continental Drift

    Answer the following questions with lots of detail and facts to support your answers.

    1. Even Alfred Wegener acknowledged that the apparent fit of continents or "matching" of continental coastlines was crude at best. Propose an explanation for this inexact fit.

    2. Evolution is adaptation, or change, of organisms in response to environmental changes. The theory of evolution states that similar organisms evolved from a common ancestor. Scientists hypothesize that marsupials like koalas and kangaroos, which are native only to Australia, evolved from the same ancestor as the marsupials known as opossums, which are native to North and South America. Does the theory of plate tectonics support the theory of evolution in this case? Explain your answer, give plenty of detail and facts that support your idea.

    3. About 200 million years ago, extensive tropical swamps existed in North America. At the same time, glaciers covered southern Africa, southeastern South America, much of India, portions of Australia, and nearly all of Antarctica. How does this information support Wegener's idea of continental drift?

    Comments

    anthony 1st (unauthenticated)
    Nov 30, 2012

    1. there once was a super continent pangea
    2. yes the former super continent pangea was around an Australia and north America were so close together they could travel
    3. the super continent pangea

    autumn smith (unauthenticated)
    Nov 30, 2012

    i want to learn more about scienctists how they do there job

    Taylor Dozier (first hour) (unauthenticated)
    Nov 30, 2012

    Mrs.Nicastri this was one of the best science units we have done so far.

    Julie Nicastri-Tankard
    Nov 30, 2012

    Glad to hear that Taylor! :)

    Sylvia Andree (unauthenticated)
    Nov 30, 2012

    1)A few million years ago there was a super continent known as Pangaea (Greek for "all of the Earth"). But when Pangaea broke apart into the continents' places that have currently taken place they fit back together like a opuzzle, if you connect that puzzle you have Pangaea.
    2) Yes, when Pangaea was connected marsupials could very well have been the same or alike in form and breed. When Pangaea broke apart and the marsupials went through changes in things like climate and enviornment the marsupials then had to have advanced selective breeding and formed different relatives such as the kangaroo, koala, and opposum
    3) The old climates that Pangaea had supported Alfred Wegener's Continental Drift Theory for two reasons 1. Most of the places in Pangaea a few million years ago have under gone changes in climate and are no longer what they where in Pangaea's time 2. When you put together all the different climates in Pangaea and place them together like a puzzle (mentioned in answer #1 you would have climates that fit together.

    SCIENCE RULES!!!

    Spriha (unauthenticated)
    Nov 30, 2012

    1. The facts that proved that the continents where 'connected' before, was fossils of animals and plants that were found along the coasts of where the continents were supposedly connected. Also, the mountains and fern types were a big fact.

    2. Since fossils of other animals were and are found in the coasts of the other continents, it is very likely that the evolution theory is correct.

    3. This is Climate Evidence. If along coastlines, 'items' are found that should naturally not be there, then it proves the theory. Also, if coal deposits are found in cold areas (highly unlikely considering the temperatures.), then it is another piece of evidence that it proves it.

    Jamal McClinton (unauthenticated)
    Dec 4, 2012

    3 The information support and helps wegner because he been researching about pangaea and now he knows more stuff about pangaea.So nowhe has more information that proves it

    Paris Allen (unauthenticated)
    Dec 4, 2012

    1. The continents where once connected , but fossils and evidence of animals were found.
    2. Yes , i think it is correct because they found eveidence (fossils)
    3. Changes in climate since all of the continents where connected (Pangaea) , in which this supports the theory.

    Icis (unauthenticated)
    Dec 4, 2012

    I will like to learn a lot more about this and this was pretty good and kinda fun to work on as a group/class

    Isaiah key (unauthenticated)
    Dec 4, 2012

    The information supports wegeners idea because the parts that were covered by glaciers fit together and the tropical parts fit together

    Tyra R. (unauthenticated)
    Dec 4, 2012

    I want to learn more about scientist and their work

    Rachel Baisa (unauthenticated)
    Dec 4, 2012

    1.) There once was a giant landmass called Pangaea made of all the continents. And years later after he Pangaea had drifted apart Wegener discovered that the continents were like a puzzle and the coast lines matched to others as well as the fossils.
    2.) In my opinion I'm not really sure about the evolution theory. Even though there's plenty of evidence I'm not completely convinced by it.
    3.) It supports as evidence for Wegener's theory because if the coastlines of different continents somewhat matched it makes continental drift more plausible.

    Steven Robertson (unauthenticated)
    Dec 4, 2012

    There was a super continent called pangea
    The super continent pangea was around Australia and North America were so close together
    The super continent Pangea
    Mrs.nicastri is the best teacher ever

    Dajanae' Willis (unauthenticated)
    Dec 4, 2012

    1)Wegener gather evidence of the existence of Pangaea from fossils,similar fossils from animal and plants that once lived near land had been found on widely separate continents.
    2)yes,because Tectonics Plates are huge pieces of crust and Rigid Upper Mantle that fit together at their edges to cover earth surface plate tectonic describes the theory of how plate tectonics move and shape earth surface,tectonic plates move away from each that form a divergent Boundary.
    3)I didn't understand question.

    Nathan Doll (unauthenticated)
    Dec 4, 2012

    #1 Pangea was all the continents formed as one and if you take all the continents and put them back together, it would form Pangea. Therefore all of the continents separated into their current positions and areas.
    #2 Yes because the animals were all one species but after Pangea broke apart the animals could have changed and thus created Koalas and Kangaroos and other Marsupials.
    #3 Once Pangea separated the continents went through climate changes.

    Tyler Westfall (unauthenticated)
    Dec 18, 2012

    There was the supercontinent Pangea.
    It does support both because their ancestors are from some where else and they live in Australia.
    It supports it because they are no longer swamps or in a frozen area.

    Erika Curka (unauthenticated)
    Dec 18, 2012

    1. Pangea was a super continent made up of all of Earth's individual continents , this existed millions of years ago. Then Pangea started to break apart. Alfred Wegner discovered that the continents' coastlines match up and fit together like a puzzle. Also, the fossils of the same species were found on different continents that had matching coastlines.
    2. Yes it does because for there to have been fossils of the same species on two different continents, there had to have been a supercontinent (Pangea) to connect these two continents.
    3. This information does support Wegner's theory of Continental Drift because for there to have been glaciers on these continents, they had to have been near the polar ice-caps, not in their present-day positions.

    Blake barber (unauthenticated)
    Dec 18, 2012

    1).Pangea is true, he is right their was once a supercontinent called Pangea
    2). theory does support plate thechtonics because once the two continents were connected, and that's how their animals are related to ours here in North America.
    3)once the continents seperated they went through climate changes.

    Regan Dodson (unauthenticated)
    Dec 19, 2012

    There was a supercontinent called Pangea
    Theory does support both
    The continents did go through some weather changes
    :)

    Cheyenne Carranza (unauthenticated)
    Dec 19, 2012

    1. Pangea did exist at a point in time because if you place them all together or connect them, they do fit! Also the fossils that were found match up.
    2. Well since the fossils were found, that gives evidence but not enough to convince me that its true.
    3. Yes, this information does support Wegner's theory because Africa would have to be near the north for it to have glaciers. So yes this does support the theory of continental drift.

    Nikita Bhangu (unauthenticated)
    Dec 19, 2012

    1. There was a supercontinent called Pangea and when you look at a map all the pieces kind of fit together.
    2. I think the plates tectonics theory helps because it tells how the earth kind of shifted
    3.it show that the land has changed over the years.

    Autumn Thomas (unauthenticated)
    Dec 19, 2012

    1. There was once a super continent called Pangea.
    2. Australia was once connected to America so the animals are similar
    3. They had to have near the polar ice caps and moved to we're the are not

    Trevor (unauthenticated)
    Dec 19, 2012

    1. Pangea is true Alfred Wagner was right

    2. Two continents where together and that why animals are related

    3. Conte ninths separate and went through climate changes

    James Byrnes (unauthenticated)
    Dec 19, 2012

    1. Pangea , all the continents are like big puzzle pieces
    2. I really wouldn't know , evolution is a very complex thing if you really think about it
    3. what?

    Devon Davis (unauthenticated)
    Dec 19, 2012

    Best science teacher ever mrs nicastri-tankard

    Natasha diaconescu (unauthenticated)
    Dec 19, 2012

    1.The theory is that all the continents were once joined together and was given the name Pangea and over time scientist believe that the continents are still in motion and wonder how the world will be in a few hundred years
    2. Yes the theory of plate tectonics explains the evolution of animals they were spread out or kept in certain places when the continents slowly moved farther away they adapted to the habitat they lived in and decided to stay there
    3.that explains his theory Because as the continents moved the moved farther and closer to the north and south poles witch changes the climate

    Parker Mccaffrey (unauthenticated)
    Dec 19, 2012

    1. I think that Pangea is true. The way that the continents fit together like a puzzle piece, makes me think its true.

    Chelsea martin (unauthenticated)
    Dec 20, 2012

    i want to learn more about other popular scientist....

    Napier Bryant (unauthenticated)
    Dec 20, 2012

    1. Pangea was the "super continent" that was once on earth many many years ago.
    2. Yes, because they have fossils which was evadince that it did have something to do with adaptation.
    3. This supports Wegners idea because of Pangea and the change of climate in those areas

    Adrian Lee (unauthenticated)
    Dec 20, 2012

    1. There was a supercontinent called Pangea, which combined all of the other continents into one huge....supercontinent.
    2. Yes it does, because animals have to adapt to their surroundings to become accustom with their surroundings, which leads to evolution.
    3. In my thought, I am guessing that when Pangea was still formed, that there were many different climate changes. Though a question is still in my mind....why does Austrailia have hot climate weather when it is the second closest continent to the South Pole?

    Taylor Mullins (unauthenticated)
    Jan 7, 2013

    1. Pangea was a super continent made up of all of Earth's individual continents , this existed millions of years ago. Then Pangea started to break apart. Alfred Wegner discovered that the continents' coastlines match up and fit together like a puzzle. Also, the fossils of the same species were found on different continents that had matching coastlines.
    2. Yes it does because for there to have been fossils of the same species on two different continents, there had to have been a supercontinent (Pangea) to connect these two continents.
    3. This information does support Wegner's theory of Continental Drift because for there to have been glaciers on these continents, they had to have been near the polar ice-caps, not in their present-day positions.

    Ronald Heard (unauthenticated)
    Jan 7, 2013

    1. The continents where once connected , but fossils and evidence of animals were found.
    2. Yes , i think it is correct because they found eveidence (fossils)
    3. Changes in climate since all of the continents where connected (Pangaea) , in which this supports the theory.

    Bethany Lowhorn (unauthenticated)
    Jan 7, 2013

    1.Pangea was a super continet
    2.Well by them moving, it takes the animals to new land and they need to learn to adapt to new things, such as: Food, predators, and a home.

    Bethany lowhorn (unauthenticated)
    Jan 7, 2013

    3.Changes in climate

    Melaina Climer (unauthenticated)
    Jan 7, 2013

    1. Millions of years ago there was a supercontinent called Pangea. However, it began to drift apart which created the continents that exist today. Wegener discovered that the coastlines of the continents could fit together like pieces of a puzzle.
    2. I think that plate tectonics does support the theory of evolution because there are fossils of different animals found on the continents. The different fossils may be able to show the changes in the animal and how it evolved as time went on.
    3. It supports the theory of continental drift because if glaciers covered continents where today, doesn't have the climate to keep the glaciers frozen then clearly the continents were once joined together.

    Taylor Griffin (unauthenticated)
    Jan 7, 2013

    1. Panagea
    2. yes because of the similaries it listed
    3. If the climates match with the place that was atched than panagea is right

    Ian Thompson (unauthenticated)
    Jan 7, 2013

    The coastlines of the continents could erode and weather over time.
    The theory of plate tectonics does support that animals can be in only one area but decend from animals in other areas because that continent could have moved.
    It shows that those continents must have been in a warmer area at one point and drifted

    Lexia Hardy (unauthenticated)
    Jan 7, 2013

    1.psngea
    2. I think yes because pangea was around alstralia and the continents seperated and i think that its possible
    for them to have the same ansestors.

    3.It Helps wagners theroy because they were all joined tougether at one point in time.

    Nick Walkup (unauthenticated)
    Jan 7, 2013

    1. erosion over the years could have wore away part of the crust
    2. yes because they were moved to different parts of the world

    westley denton (unauthenticated)
    Jan 7, 2013

    1.) There once was a giant landmass called Pangaea made of all the continents. And years later after he Pangaea had drifted apart Wegener discovered that the continents were like a puzzle and the coast lines matched to others as well as the fossils.
    2.) In my opinion I'm not really sure about the evolution theory. Even though there's plenty of evidence I'm not completely convinced by it.
    3.) It supports as evidence for Wegener's theory because if the coastlines of different continents somewhat matched it makes continental drift more plausible.

    Jacob Clarkkkk (unauthenticated)
    Jan 16, 2013

    1. This 'fit' of sorts was all started from a super-continent breaking apart that formed around 300 mya, called Pangaea. Around 200 mya, Pangaea started to 'break apart'. This process is called Continental Drift, which is caused by convection currents in the earth's mantle that move tectonic plates (I think that's right..). This is why scientists have found same/identical fossils on two separate continents, separated by a large ocean.

    2. I believe this is correct, and that it does support the theory of evolution. When Pangaea existed, animals were able to travel to and from 'now-a-day continents'. After the animals became dead/extinct, their fossils would be spread around Pangaea. When Pangaea 'broke apart', it separated these fossils. I hope that made sense..

    3. This is called 'Climatic Evidence'. This does support the theory of Continental Drift. For example, plants fossils were found in Antarctica, but these plants would have no chance of survival in Antarctica's current position. In order for this plant fossil to be in Antarctica, I would have had to be closer to the Equator, a long time ago.

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