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Name_____________________________________ Date____________________Pd___ PhET Plate Tectonics Simulation Lab Pre-lab: What does subduct mean, in terms of tectonic plates? _________________________________ Why does subduction occur (what causes it)? ______________________________________ _____________________________________________________________________ Go to https://phet.colorado.edu/ and search for ‘Plate Tectonics Simulation’. Spend 5 minutes exploring the simulation. Select the “Crust” tab at the top of the simulation. Under view, select “Both.” What are the 3 variables that can be changed in this simulation? (scale and zoom are not variables) 1. _________________________________________________________________ 2. _________________________________________________________________ 3. _________________________________________________________________ How can you adjust the 3 variables to make your crust like oceanic crust? ___________________ _____________________________________________________________________ How can you adjust the 3 variables to make your crust like continental crust? ________________ _____________________________________________________________________ Select the “Plate Motion” tab at the top of the simulation. Under view, select “Both.” Investigate CONVERGENT boundaries (GREEN arrows) and report findings in table. Left side crust Right side crust Continental Continental Continental Old ocean Old ocean Continental Continental Young ocean Young ocean Continental Old ocean Young ocean Young ocean Old ocean Which has higher density? Which crust subducts? Do volcanic mountains form? Does a TRENCH form? On which crust do VOLCANOES form? What is the relative motion of plates at ALL convergent boundaries? ______________________ _____________________________________________________________________ Name_____________________________________ Date____________________Pd___ Look at your table for convergent boundaries. Three times the same two types of crust were used, but you switched what side they were on. What do you observe about the results? ______________ _____________________________________________________________________ Look for patterns in density, subduction and volcanoes on the table. What do you observe about the results? ________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ Investigate divergent boundaries. (Use RED arrows) Draw and label the following: Divergent oceanic/oceanic Divergent continental/continental What is the relative motion at ALL divergent boundaries? _____________________________ What is formed at ALL divergent boundaries? _____________________________________ Investigate transform boundaries (blue arrows). Describe the relative motion of ALL plates at transform fault boundaries ___________________________________________________ _____________________________________________________________________ Conclusion: Describe one additional interesting observation you made during the plate tectonic simulation: _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ How do mass, force and acceleration relate to earth’s plate movements? _________________ _____________________________________________________________________ _____________________________________________________________________
