Discussion Questions: Plate Tectonics: An Introduction

• Is Earth's surface stable and stationary now? Was it ever in the past? Do you think it will be stable in the future?
• Do you think that the way continents fit together is convincing evidence for the theory of plate tectonics? Why or why not?
• What was the supercontinent called that once contained nearly all of the continental crust? Research what the name means.
• Which ocean is growing in size? Which is shrinking? Explain why this is occurring.
• How does the theory of plate tectonics help us explain natural phenomena such as earthquakes and mountains, which geologists had difficulty accounting for prior to the development of the theory?