Q Website: http://www.learner.org/interactives/dynamicearth/index.html Click on ‘Start your exploration with Earth’s structure’ and go through the tutorial. Complete Earth’s Structure, Plate Tectonics, Plates and Boundaries, and Slip, Slide, and Collide and answer the following questions. You do not need to take the test at the end. Earth’s Structure 1. What is the inner core made out of?2. Which layer is divided into constantly moving plates of solid rock that hold the continents and oceans? Plate Tectonics 1. Who was the first person to discover that the continents were moving? 2. What was the original landmass called?Plates and Boundaries 1. Which crust is thicker, oceanic or continental? 2. What type of boundary occurs off the coast of California?1. What type of zone occurs when an oceanic crust collides with a continental crust?2. Seafloor spreading occurs at what type of boundary?