Resources
http://www.newton.dep.anl.gov/askasci/mats05/mats05047.htm
http://www.tulane.edu/~sanelson/Natural_Disasters/volcan&magma.htm
http://www.chemicalelements.com/show/meltingpoint.html
http://vulcan.wr.usgs.gov/Glossary/LavaFlows/description_lava_flows.html
http://www.newton.dep.anl.gov/askasci/mats05/mats05047.htm
http://www.tulane.edu/~sanelson/Natural_Disasters/volcan&magma.htm
http://www.chemicalelements.com/show/meltingpoint.html
http://vulcan.wr.usgs.gov/Glossary/LavaFlows/description_lava_flows.html