Use the Internet information linked below to compile a timeline of events and people who have helped formulate the theories of Continental Drift and Plate Tectonics such as:

1.      Alfred Wegener (1910-1920)

2.      Arthur Holmes (1930's)

3.      Harry Hess (1950-1960)

Alfred Wegener http://www.pbs.org/wgbh/aso/databank/entries/bowege.html

Wegener proposes idea of continental drift 1912-http://www.pbs.org/wgbh/aso/databank/entries/do12we.html

Hess proposes sea-floor spreading 1960 http://www.pbs.org/wgbh/aso/databank/entries/do62se.html

Harry Hess 1906 – 1969- http://www.pbs.org/wgbh/aso/databank/entries/bohess.html

Sea-Floor Spreading – Hess & Dietz http://volcano.und.edu/vwdocs/vwlessons/plate_tectonics/part8.html

Subduction – where does the crust go? http://volcano.und.edu/vwdocs/vwlessons/plate_tectonics/part10.html

The Birth of plate Tectonics http://volcano.und.edu/vwdocs/vwlessons/plate_tectonics/part11.html