Earth and space Science final

  1. Plate tectonic theory
    States that Earth’s crust and upper mantle are broken into sections. These sections are called plates
  2. What are the three plates
    • Divergent
    • Transform
    • Convergent
  3. Continental drift
    Alfred Wegener thought that the continents used to be together (Pangaea) and they moved apart horizontally to there current location.
  4. What are the reasons supporting the continental drift
    • Similar rock formations
    • Climate clues
    •    Glaciers in Africa and coal in Scandinavia
    • Mountains with very similar structure on both sides of the Atlantic
    • Matching fossils on S. America and S. Africa
    • They look like they fit together.
  5. Different types of plate boundaries
    • Divergent boundary
    • Transformation boundary
    • Convergent boundary
  6. Divergent boundary
    when two plates move apart.
  7. Transformation Boundary
    when two plates slide past each other. This area marked by cracking of the crust; many shallow earthquakes.
  8. Convergent boundary
    Two pieces of crust collide. There are three different types of convergent boundaries
  9. what are the three different types of convergent boundaries
    • Oceanic - oceanic
    • Oceanic - Continental
    • Continental - Continental
  10. The different layers of the earth
    • Crust
    • Mantel
    • The lower mantle
    • Core
    • Outer core
    • Inner core
  11. earths crust
    a layer of solid rock that includes both dry land and the ocean floor
  12. Oceanic crust
    mostly of rock like Basalt - a dark rock with fine texture
  13. Continental crust
    consists mainly of Granite rock - usually light in color and coarse texture
  14. Mantel
    • The layer surrounding earth's core. The mantle consist of layers of very hot rock
    •    Lithosphere and Asthenosphere
  15. Lower mantle
    Beneath the asthenosphere is made up of solid rock and extends to Earth’s core
  16. Core
    Deepest inside layer, made up of mostly nickel and iron
  17. outer core
    layer of molten metal (liquid)
  18. inner core
    a dense ball of solid metal (solid)
  19. What elements make up the inner and outer core?
    The solid inner core is made of mainly iron crystals with small amounts of nickel and heavier elements such as gold and platinum. The liquid outer core is a nickel iron alloy with small amounts of heavier elements
  20. the 4 divisions that make up Earth’s history and what order they should be in
    • oldest to youngest (young being on top)
    • cenozoic era 
    • mesozoic era 
    • paleozoic era
Card Set
Earth and space Science final
Earth and space Science final