Handout
US Geological Survey

Usgs: Developing the Theory

For Students 9th - 10th
This comprehensive overview of continental drift takes a historical look at the various types of evidence which led to the development of the theory.
eBook
Libre Text

Libre Text: Historical Perspective [Of Plate Tectonics]

For Students 9th - 10th
Read here about the historical perspective of plate tectonics.
Handout
Vision Learning

Visionlearning: Earth Science: Plate Tectonics I: Geologic Revolution

For Students 9th - 10th
Instructional module focusing on the development of plate tectonic theory. Discussion includes the evidence of Pangaea, and the processes of seafloor topography and seafloor spreading. Site also includes an interactive practice quiz and...