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Plate Tectonics (Boundary # (Convergent Boundary (Three types of…

- - - - Oceanic Crust
        
        Oceanic Crust = Made of metals
      - Continental Crust
        
        Continental Crust = Made of Silica
    - - Oceanic-Oceanic convergent boundary's
        
        Island Arks
      - Continental-Continental convergent boundary's
        
        Mt. Everest
      - Oceanic-Continental Convergent Boundary's
        
        Volcano Makers
  - - - Volcanos
        
        Cinder Cone
        
        Shield Volcano-Hawaii
        
        Composite Cone / Stratovolcano- Mt.St. Helens
      - Earth Quakes * Tsunami
      - Mountains- Rocky Mountains
      - Islands
      - Oceans
- - - - Alfred found that if you take all of the continents and put them together they all align and make one continent
    - - Alfred found fossils on one continent and those same species on another continent which made him think that there is no other way the same species could be on different continents unless they were together
    - - Alfred found that on different continents he would find that rocks would align
    - - Alfred found coal in Antarctica which showed that Antarctica used to be warm
- - - - Then as the hot less dense magma goes up and onto the earth the crust pulls down towards the ground
    - - Then as the convection current goes gravity pushes the crust into the earth
    - - Where the more dense stuff goes down and the less dense goes up and it just goes in a circle