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Plate Tectonics
Question | Answer |
---|---|
the scientist that introduced the Theory of Continental Drift | Alfred Wegener |
the name that Alfred Wegener gave the supercontinent | Pangea |
what causes the movement of the plates | convection currents in the asthenosphere |
plate boundary where two plates collide | convergent boundary |
plate boundary where two plates separate or divide | divergent |
plate boundary where two plates slide past each other | transform |
landform that is created when two continental plates collide | mountain |
landform that is created when a continental plate collides with an oceanic plate | volcano |
process that occurs when a plate that is more dense sinks under a plate that is less dense | subduction |
extremely deep area of the ocean floor | trench |
area along the edge of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur | Ring of Fire |
five pieces of evidence of Plate Tectonics Theory | Continents fit like a puzzle. Plant and animal fossils line up when continents are together. Rock patterns match when continents are together. Glacial striations match when continents are together. Mountain ranges match when continents are together. |
what causes tsunamis | movement of ocean floor |
two things that happen in the Ring of Fire | volcanoes and earthquakes |
this process continually adds new ocean floor along both sides of the mid-ocean ridge | seafloor spreading |
underwater mountain range | mid-ocean ridge |
This causes mountains to increase in elevation. | colliding plates |