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1021.notebook October 24, 2011 Friday, October 21 1. Please paste your Science Energizer into your journal. 2. Don't forget to answer WHY you chose the answer you did. An interaction between two organisms in which both benefit is called what? a. competition b. mutualism c. commensalism d. parasitism 1 1021.notebook October 24, 2011 An interaction between two organisms in which both benefit is called what? a. competition b. mutualism c. commensalism d. parasitism Both organisms benefit in mutualism Plate Boundaries Handout • Graded out of 10 points. • Stamp means you received 10/10 • If you did not turn it in, please turn it in at some point. HOWEVER, now that we have gone over it, I will be much more strict on my grading..so make sure you have EVERY answer CORRECT! 2 1021.notebook October 24, 2011 Convergent Boundary-Oceanic/Continental Definition: two plates converging Real World Example: Nazca Plate subducting under the South American Plate, WashingtonOregon Coastline Real World Example: Nazca Plate subducting under the South American Plate, WashingtonOregon Coastline 3 1021.notebook October 24, 2011 Convergent Boundary-Oceanic/Oceanic Definition: when two plates converge, one is usually subducted under the other and in the process a trench is formed Real World Example: Marianas Trench, Japan Real World Example: Marianas Trench, Japan 4 1021.notebook October 24, 2011 Convergent Boundary-Continental/Continental Definition: crust tends to buckle and be pushed upwards or sideways Real World Example: Himalayan Mountain Range Real World Example: Himalayan Mountain Range 5 1021.notebook October 24, 2011 Divergent Boundary-Oceanic Definition: plates move apart and new crust is created Real World Example: MidAtlantic Ridge; East Africa Rift Valley Real World Example: MidAtlantic Ridge; East Africa Rift Valley 6 1021.notebook October 24, 2011 Transform Boundary-Continental Definition: two plates sliding horizontally past one another, most found on ocean floor Real World Example: San Andreas fault, Pacific and North American plates sliding past each other. Real World Example: San Andreas fault, Pacific and North American plates sliding past each other. 7 1021.notebook October 24, 2011 Which of the above boundaries can produce earthquakes? oceanic/continental convergence, transform, oceanic/oceanic convergence... all plate boundaries can produce earthquakes! Which of the above boundaries can produce volcanoes? divergent, oceanic/oceanic convergence, oceanic/continental convergence 8 1021.notebook October 24, 2011 At which of the above boundaries is seafloor created? divergent At which of the above boundaries is seafloor destroyed? convergentoceanic/continental, oceanic/oceanic 9 1021.notebook October 24, 2011 What are the three types of convergent boundaries? 1. oceanic/oceanic 2. oceanic/continental 3. continental/continental What landforms are created at the following convergent boundaries? a. oceanocean island arcs b. oceancontinent uplift mountain ranges c. continentcontinent mountains 10 1021.notebook October 24, 2011 Where are most of the volcanoes and earthquakes located? plate boundaries, ring of fire Why are they located in these positions? most tectonic activity Describe what a hot spot volcano is: fixed places within the mantle or oceanic lithosphere, where rocks melt to generate magma. 11