Works Cited

• http://www.enchantedlearning.com/subjects/volcano/
  
• https://www.youtube.com/watch?v=QUWdkHPm4os
  
• http://www.enchantedlearning.com/subjects/tsunami/
  
• http://www.vtaide.com/png/George/earthquake.htm
• https://www.youtube.com/watch?v=faADIW34DC0
  
• http://www.geology.wisc.edu/courses/g115/projects03/emgoltz/definition.htm
• http://geography.about.com/od/physicalgeography/a/erosion.htm
  
• http://www.youtube.com/watch?v=G5Rp9MJJGCU
  
• http://www.nature.nps.gov/geology/usgsnps/misc/gweaero.html