https://www.google.co.uk/url?sa=i&source=images&cd=&ved=0ahUKEwigoPaoutfNAhWBIMAKHaMSCfIQjB0IBg&url=https%3A%2F%2Fwww.haikudeck.com%2Fmt-st-helens-education-presentation-fGvdREGa2K&psig=AFQjCNEuHfQE82z6wnCuYC4WZE9pvIfp8w&ust=1467640805788733&rct=j
https://www.google.co.uk/url?sa=i&source=images&cd=&ved=0ahUKEwiMoKrottfNAhVsI8AKHZ3TCekQjB0IBg&url=http%3A%2F%2Fwww.oregonlive.com%2Fmount-st-helens%2F&psig=AFQjCNG2PcsMITAFu7Nlv0_Co6CcI8A43w&ust=1467639754631248&rct=j
http://eqseis.geosc.psu.edu/~cammon/HTML/Classes/IntroQuakes/Notes/plate_tect01.html
http://pottersgeography.blogspot.co.uk/2013/05/features-of-volcano_9.html
http://www.bbc.co.uk/education/guides/zyhv4wx/revision
http://www.primaryhomeworkhelp.co.uk/mountains/maunaloa.html
http://www.bbc.co.uk/schools/gcsebitesize/geography/natural_hazards/volcanoes_rev7.shtml
https://www.google.co.uk/url?sa=i&source=images&cd=&ved=0ahUKEwi2wKuuvtfNAhXBAMAKHc1jA9UQjB0IBg&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2F1980_eruption_of_Mount_St._Helens&psig=AFQjCNHb3NKiFiHDJMRu0eXInv1JWJnlVw&ust=1467641921345063&rct=j
https://www.google.co.uk/url?sa=i&source=images&cd=&ved=0ahUKEwiMoKrottfNAhVsI8AKHZ3TCekQjB0IBg&url=http%3A%2F%2Fwww.oregonlive.com%2Fmount-st-helens%2F&psig=AFQjCNG2PcsMITAFu7Nlv0_Co6CcI8A43w&ust=1467639754631248&rct=j
http://eqseis.geosc.psu.edu/~cammon/HTML/Classes/IntroQuakes/Notes/plate_tect01.html
http://pottersgeography.blogspot.co.uk/2013/05/features-of-volcano_9.html
http://www.bbc.co.uk/education/guides/zyhv4wx/revision
http://www.primaryhomeworkhelp.co.uk/mountains/maunaloa.html
http://www.bbc.co.uk/schools/gcsebitesize/geography/natural_hazards/volcanoes_rev7.shtml
https://www.google.co.uk/url?sa=i&source=images&cd=&ved=0ahUKEwi2wKuuvtfNAhXBAMAKHc1jA9UQjB0IBg&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2F1980_eruption_of_Mount_St._Helens&psig=AFQjCNHb3NKiFiHDJMRu0eXInv1JWJnlVw&ust=1467641921345063&rct=j