This is a worksheet for students to complete while doing the webquest for this interactive site: http://www.learner.org/interactives/dynamicearth/index.html. While on this site, there are four main tabs for the student to explore. They are 1. Earth's Structure, 2. Plate Tectonics, 3. Plates and Boundaries, and 4. Slip, Slide, & Collide. This document is 4 half sheets and each half sheet goes with one of the four tabs to the interactive website. I made them half sheets so that students can co