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Pangea

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  • What makes up the lithosphere?
    Crust and upper mantle
  • Give an Example of a diverging continental divide?
    East African Rift
  • What is a deep sea trench?
    Space created by subduction at 2 convergent boundaries
  • How many supercontinents have existed before Pangea?
    2
  • Give an example of a oceanic plate divide.
    Mid Atlantic Ridge
  • What type of scientist was Hess?
    Geologist
  • What is a mid ocean ridge?
    Underwater mountain system
  • How hot is it in the Inner Core?
    3,000 deg F or 10,000 deg F
  • What is a convergent boundary?
    Land masses that crash into each other.
  • Give an example of converging oceanic plate.
    Islands of Japan
  • Why do supercontinents form?
    The landmasses on Earth move a few centimeters each year.
  • Which group of scientists gave Wegener a difficult time in regards to his idea?
    Geologists
  • What is sea floor spreading?
    Melted rock being pushed up and cooled by water to become new rock. Older rock is farther away.
  • What is a divergent boundary?
    Two land masses moving away from each other
  • What is this?
    transform boundary
  • What is this?
    divergent boundary
  • What is a supercontinent?
    When nearly all of Earth's landmasses come together to form a a giant landmass.
  • What supercontinent is this model showing?
    Pangea
  • What technology helped Hess come up with his idea?
    Sonar
  • What makes the layer of the Earth's crust?
    Oceanic and Continental Land Masses
  • What evidence indicates the 7 continents formed Pangea?
    The same dinosaur/amphibian fossils, desert and basalt have been found on multiple continents.
  • What is a transform boundary?
    Tectonics plates that touch each other.
  • When may the supercontinent Amasia form?
    In 250 Million Years
  • What supercontinent is this model showing?
    Amasia
  • What layer of the Earth is liquid?
    The outer core.
  • What is this?
    convegent boundary
  • What does tectonic plates mean?
    Land masses that move slowly
  • Is the Inner Core liquid or solid?
    Solid
  • Give an example of a continental converging plates.
    Himalayan Mountains
  • How long ago did Earth's landmasses arrange in Pangea?
    300 million years ago
  • What is Amasia?
    A predicted super continent.
  • Who proposed the scientific idea of sea floor spreading?
    Hess
  • What is subduction?
    Older heavier plates sliding under young lighter plates
  • What are tectonic plates?
    Giant land masses that move around Earth.
  • Where do scientists predict Amasia will be located?
    North Pole
  • Who proposed the scientific idea of continental drift?
    Wegener
  • What type of scientist was Wegener?
    Meteorologist
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