The directions for this activity start on page 20 of the PDF.
This activity should take about 6, 50 minute class periods. On Day one, students chose to research one of the ten biggest eruptions in history by developing questions to answer and also develop a vocabulary list to be used on the activities for days four and five. On Days two and three, students view two videos about the Krakatoa eruption, each video is 52 minutes long. Students are tasked with writing a journal as a person experiencing the eruption and subsequent tsunami. Days four and five, students use NOAA data to develop maps of volcanic eruptions also including the elevation of the volcano. Students are told in the activity papers, that volcanoes in lower latitudes (between 20oN and 20oS)can affect the climate more than those in other latitudes. After students have mapped the volcanoes, they sort and arrange them by the volcanic eruption index. They then develop a graph showing aerosol dispersion and atmospheric levels. An updated version of the original NOAA activity referenced in the materials for days four and five can be found here: http://www.esrl.noaa.gov/gmd/education/info_activities/pdfs/PSA_volcanoes_and_climate_change.pdf The culminating activity on day six has students use their models and current jet stream and wind speed data to determine the path and travel time of a volcanic ash plume if a chosen Cascade mountain range volcano erupts.