PLATE TECTONICS TEST STUDY GUIDE (Layers of Earth, Continental Drift & Plate Tectonics) Layers of the Earth o o Describe the 3 chemical layers of the Earth. Crust – Mantle – Core – Describe the 5 physical layers that make up the Earth. 1. Lithosphere – 2. Asthenosphere – 3. Mesosphere – 4. Outer Core – 5. Inner Core – o How do we know what the inside of the Earth looks like? o Earthquakes produce ____________________________________. Continental Drift o What was Alfred Wegener’s hypothesis? o What is the evidence to support Wegener’s hypothesis? (4 pieces of evidence) 1. 2. 3. 4. o Define Longitude and Latitude. o Name the large continent 300 million years ago. ___________________________________ Plate Tectonics o What happens in sea-floor spreading, and how does it occur? o What is the theory of plate tectonics? o Where do subduction zones take place? What happens there? o Plate Boundaries – what is the movement at each plate and what does it cause? Divergent Convergent I. Ocean – Ocean II. Ocean – Continent III. Continent – Continent Transform Driving forces of plate tectonics – responsible for moving the tectonic plates Ridge push Convection Slab pull