9/15/11 and 9/16/11
Plate Tectonics
The Structure of the Earth and Plate Tectonics. 2 Structure of the Earth The Earth is made up of 3 main layers: –Core –Mantle –Crust Inner core Outer.
Plate Tectonics Tectónica de placa. Tectonic Plates The lithosphere is broken into many large and small slabs of rock called tectonic plates. La litosfera.
Proposed by Alfred Wegener in 1912 250 million years ago, all of the continents were combined into one super-continent called “Pangaea” The continents.
The Structure of the Earth and Plate Tectonics
