General Science.  The Earth’s Spheres Our planet formed 4.5 billion years ago. Since then, it has developed and modified four main physical environments that interact…

Slide 1 Slide 2 The American Geographical Society acquired its Fliers & Explorers Globe in 1929 as a gift from AGS President John H. Finley. As Editor-in-Chief of the…

Slide 1Plate Tectonics 6.E.2.2 Explain how crustal plates and ocean basins are formed, move and interact using earthquakes, heat flow and volcanoes to reflect forces within…

1.The History of Life on Earth Evidence of the Past2. Fossils  Fossils: traces orimprints of once-living things  Dead organism is covered by layer of sediment, which…

Slide 1 Slide 2 Plate Boundaries--The location were two plates meet. Divergent boundaries -- where new crust is generated as the plates pull away from each other. Convergent…

Slide 1 GR. 9 GEOGRAPHY (APPLIED) CGC1P The Wonders of Nature: We’re still drifting… Canadian War Museum Slide 2 Something to warm us up… Watch Ice Age: Continental…

Slide 1 2) Super Continent cyclisity (?) and Wilson cycle tectonics Does the earth’s continental lithosphere go through stages of assembly and disintegration to produce…

Slide 1 Slide 2 Theory Of Continental Drift Alfred Wegener It is this German man to whom we credit with the proposal of the theory of Continental Drift. Slide 3 While pondering…

Slide 1 What evidence do we have that over time continents have moved? Slide 2 Evidence from land features Slide 3 Evidence from fossils Slide 4 Evidence from land features…

Slide 1 SYNTHESIS: Theory of Plate Tectonics –The new hypotheses of the early 1960s explained several puzzling sets of observations. All that remained was a synthesis of…