http://www.transworldusa.com/tpro/towels/paper-towel-experiment.htm
lots of paper towel experiments
http://www.col-ed.org/cur/science.html
science lessons
http://www.sciencenetlinks.com/matrix.cfm
more lessons - make a cell is in here
http://www.google.com/search?sourceid=navclient&ie=UTF-8&rls=GGLD,GGLD:2005-06,GGLD:en&q=science+lesson+plans
This is the Google search
http://www.tappi.org/paperu/fun_science/testStrength.htm
Paper Towel Testing
http://raven.ischool.washington.edu/thegateway/browse/16242
http://www.seaworld.org/animal%2Dinfo/info%2Dbooks/walrus/classroom%2Dactivities%2Dht.htm
http://www.seaworld.org/Search/query.idq?CiScope=%2F&CiMaxRecordsPerPage=10&TemplateName=query&CiSort=rank%5Bd%5D&HTMLQueryForm=query.htm&CiRestriction=hypothesize+this
http://school.discovery.com/sciencefaircentral/scifairstudio/handbook/scientificmethod.html
http://www.pages.drexel.edu/~bcb25/scimeth/intro1.htm