1. “ Drifting Continents” 2. Describe one piece of early evidence that led people to suggest that Earth’s continents may have once been joined. Discuss evidence of…

1. A Unifying Theory 2. A unifying theory is one that helpsexplain a broad range of diverse observationsinterpret many aspects of a science on a grand scale and relate many…

1. Plate Tectonics 2. The Plates 3. How do we know this? Part 1 – older evidence Biology – same fossils in different parts of the world Geology – same rocks in different…

Slide 1 Chapter 3 Plate Tectonics: A Unifying Theory or, “How the map was made” Slide 2 A unifying theory is one that helps –relate many seemingly unrelated phenomena…

Slide 1 Earth Science Chapter 17: Plate Tectonics Slide 2 Section 1 – Drifting Continents Slide 3 17.1 – Essential Questions What are the lines of evidence that led Wegener…

Slide 1 Slide 2 Some questions we will answer today: –How is the earth always changing? –What forces inside the earth create and change landforms on the surface? –What…

Slide 1 Continental Drift Slide 2 Basic Premise ► At one point in history all continents were combined in one big supercontinent ► For some reason the continent split…

Slide 1 Slide 2 OBJECTIVE Describe one piece of early evidence that led people to suggest that Earth’s continents may have once been joined. Drifting Continents Identify…

Slide 1 Plate Tectonics Rearranging Earth’s Surface Slide 2 Tectonic Processes GOAL: To understand the processes behind the distribution of Earth’s continents and oceans…

Motion Essential Questions What are the lines of evidence that led Wegener to suggest that Earthâs continents have moved? How does evidence of ancient climates support continental…