NASA for middle-school students http://www.nasa.gov/audience/forstudents/5-8/features/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
Current Science Magazine http://www.weeklyreader.com
Nova http://www.pbs.org/nova.com
Interactive Earthquake link http://nemo.sciencecourseware.org/eec/Earthquake/
volcano site http://www.paricutin.com/active_volcanoes_001.htm
volcano site http://www.geography-site.co.uk/pages/physical/earth/volcanoes/comp.html
Volcano site http://www.solcomhouse.com/volcano.htm
Holt Science and Technology Text book http://my.hrw.com
Volcano webserach http://www.cosmeo.com/braingames/virutal_volcano/index.cfm
Tides Lab http://sunshine.chpc.utah.edu/labs/tides/menu_tide.swf
Eclipses http://www.forgefx.com/casestudies/prenticehall/ph/eclipse/eclipses.htm