Thames & Kosmos Volcanoes and Earthquakes Model volcano erupts multiples times, allowing the "lava" to form the volcanic cone in layers Build a working seismograph Supports National Geographics mission to inspire people to care about the planet by helping kits learn about science in a fun way A portion of the proceeds from the sales of National Geographic kits goes to support vital exploration New 2012 Item - includes 60-page full-color manual