Global applications of energy transfer

Blue Marble (planet earth) by woodleywonderworks on flickr

Each table will be given one of the following questions to research.  Find out all you can, remembering to discuss heat transfer in your answers.   Then we’ll share our findings with the class. The link below each question takes you to a youtube clip that will help to get you started.  Eventually you will post your findings as comments to this blogpost.

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8 Responses to “Global applications of energy transfer”

  1. adilet santi if nacho wei says:

    Islands are created when underwater volcanoes erupt, the lava that comes out is cooled down by the water and forms hard rock. As more lava is cooled, the rocks pile up until they form an underwater mountain. By the time the mountain reaches the surface it turns into an island. For example, the Hawaii islands were all created by underwater volcanoes. When these oceanic islands start to sink, they form atolls. An atoll is a formation where corals surround a lagoon either partially or completely.

  2. Amy, Celina, Charlotte, Cc, Joshua says:

    The wet will get wetter and the dry will get drier. This is because of the change in global temperature and the wind currents.

    Now that the temperature is rising, more and more water is evaporated, therefore making the arid regions even drier because of the loss of moisture. This evaporated water then makes its way into clouds and because of wind currents, these clouds are moved form one place to another. These clouds find their way to the tropical regions and that is where it precipitates. An example of this situation is the Saharan desert. there, no rain is received because no precipitative clouds end up their but instead only in places like the Amazon forest. Since the tropical regions are also affected, water from there is also evaporated and then precipitated somewhere else. These clouds precipitate in the sub-polar regions which are also considered the tropics.

    So, the dry areas get even drier and loose moisture while the tropics get even more tropical(humid or wetter).

  3. Profile photo of Kelvin Kelvin says:

    Answer for Question 1:

    In the winter, London is warmer than Newfoundland because London is a large island, through which breezes from the North Atlantic Drift pass. The North Atlantic Drift is a warm ocean current. It originates in the gulf stream. Any cold air mass that comes from the Artic has to pass through the North Atlantic Drift and get significantly warmed up before it affects London. The ocean current that flows through Newfoundland mainly comes from the Artic and is therefore a cold current.

    This is a picture of showing the current that runs through Newfoundland.
    http://www.heritage.nf.ca/environment/images/currents.gif

    Resource: http://answers.yahoo.com/question/index?qid=20090301120226AAebEzr

    Isabel, Kelvin, Kavita, Brian and Hank

  4. NICK N' OUT BURGER , STUART SHAKEYS, JAE WOO JOLIBEE, HARRY HARVEYS, HUSAN HAPPY MEAL says:

    Answer for question 1:

    During the winter season, Newfoundland is warmer than London because of the Gulf Stream. The Gulf Stream is a current which comes from the Gulf of Mexico and passes near the U.K. It goes that way because of the Coriolis effect. Warm water from the Gulf of Mexico goes toward the shores of the UK and the wind that blows toward the shores gets warmer because of the warm water, resulting in a mild climate in London. On the other hand, Newfoundland in Canada is very close to the cold waters coming from the North Pole.

    Source and Photo 😀

    http://mikephilbin.blogspot.com/2010/07/dr-bill-deagle-gulf-stream-has-stopped.html

  5. AJohn, Alex, Jaime, Arshaan says:

    The earth has 4 layers: the inner core, the outer core, the mantle and the crust. The continents are located on the crust, which sits on top of the mantle. The mantle is a semi liquid layer of the earth. Inside the mantle, there is heat energy, which causes a convection current. The crust is broken into pieces called tectonic plates. These tectonic plates move around as when the current beneath them moves, therefore causing the continents to move.
    Convection heat in the semi liquid mantel currents cause movements in the tectonic plates because the heat moves in a circular motion which pushes the plates. This means that Europe and North America can move apart because of the plates they occupy are being pushed apart. While the heat currents move in a circular form, the land above the plates moves along with the motion, causing the continents to drift either toward or apart from each other.
    Continents have always been moving. For example, there was once a time when the earth had a “mega continent”, where all land masses were connected. Therefore, it is possible that North America will one day further apart from Europe.

    Sources:

    http://www.worldbookonline.com/student/article?id=ar434175&st=tectonic+plates http://en.wikipedia.org/wiki/Continental_drift http://www.enchantedlearning.com/subjects/dinosaurs/glossary/Contdrift.shtml http://wiki.answers.com/Q/What_causes_tectonic_plates_to_move http://library.thinkquest.org/17457/platetectonics/2.php http://sci.waikato.ac.nz/evolution/PlateTectonics.shtml http://www.brainpop.com/science/earthsystem/platetectonics/

  6. Sunny, Ramya, Annika, Disha, Gaea says:

    How is heat related to the formation of atolls, islands and mountains?

    Heat transfer plays a role in our world today, however, some of its most significant effects go unnoticed by the public. This is reasonable, for the change it causes cannot be detected in our daily lives, nor by regular people. Even one of the world’s most touristic and scenic sites is greatly affected by this – and this is the islands of Hawaii, which grew by 2 and a ½ kilometers in 25 years due to its existing active volcanoes.

    The phenomena this causes has something to do with the heat found within the earth’s interior. This consists of liquefied iron and rock, and this happens because of the great pressure existing within it. Through convection in the mantle, or when molecules that are heated expands, becomes less dense and rises, a cycle or constant motion is created. This causes sections of the earth’s crust called plates to move around. Along with the movement of these, volcanic activity and eruptions, both on land and beneath the waves, contribute to the increase in land mass of certain islands, or the very creation of new ones.

    Land formations such as mountains and atolls occur when the lava from beneath the earth’s crust rises to the surface and manipulates land mass. For the formation of atolls, the convection current moves the plate away from its original place, a new island is created, and coral reefs surround it in a circular formation takes its place. Such occurrences occur in places such as, as mentioned earlier, Hawaii.

    Since lava flows continuously, this process will continue, and will slowly but surely cause the renewal of the façade of the earth’s crust, just as it had billions of years ago.

    http://www.solcomhouse.com/volcano.htm
    http://www.umich.edu/~gs265/society/volcanoes.htm
    http://www.waterencyclopedia.com/Tw-Z/Volcanoes-and-Water.html
    http://www.vency.com/volcanoes.html

  7. Bettina, Yusuke, Amar, Daniel, Karina says:

    One key reason that it rains more in the tropics is precipitation. There is both more water and lower air pressure in the tropics, leading to high levels of rain. However, the Sahara has high air pressure and is very dry, therefore it does not rain more than an inch per year. Another cause for this is that clouds cannot pass over the mountains surrounding the Sahara.

    Sources:
    http://www.sciencedaily.com/releases/2007/08/070827174306.htm
    http://www.ace.mmu.ac.uk/eae/climate/older/Rainfall_Patterns.html
    http://uk.answers.yahoo.com/question/index?qid=20080502125803AAm4n18

  8. Shannon, Ari, Kate, Joy, Asha says:

    Europe and America are moving further apart geographically. The reason behind this is due to plate tectonics currents in the ocean floor moving; thus it’s shifting the continents either apart or together and this explains why our earth looks like this today versus the past. In the past the earths’ continents were thought to be all one huge continent named Pangaea. This was 2 or 3 hundred million years ago. It was believed that California and Australia were neighbors. Then they started to break apart forming the continents we know now.
    Europe and America are moving further apart geographically because of the theory of plate tectonics. Tectonic plates are rigid slabs almost floating along the asthenosphere. Scientists know that the moving of the plates is somehow related to convection currents in the Earth’s crust. In the Earth’s crust, hot materials (from magma) rise up as cooler materials flow downward. It is acknowledged to be the original source of driving plate tectonics. Today, America and Europe move about 7.5 cm further apart every year as the Atlantic Ocean grows wider.

    In both of these pictures you can see the plate tectonics of Europe and North America are going in opposite directions thus splitting apart.

    http://www.theflatearthsociety.org/forum/index.php?topic=34949.20v
    http://www.pbs.org/wgbh/aso/tryit/tectonics/intro.html

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