Access Excellence Activities Collections   A collection of science activities and investigations that have been compiled in a searchable database. Users can search for activities by subject, grade level, and special subject names.  http://accessexcellence.org/AE/

ATEEC       The Advanced Technology Environmental Education Center  does not have a long list of lesson plans but the ones that are given are very detailed and large in scope ( more for a unit then a single lesson ). Most of the unit ideas require students to use technology for data collection, analysis, and data presentation.     http://www.ateec.org/curric/activity.cfm

Columbia Education Center     The lessons on this site contain a wider variety of topics than other sites. Lesson plans are divided by subject area and grade level.                http://www.col-ed.org/index_lessons.html

edHelper.com     This collection of lesson plans can be searched only by grade level and general topics.
    http://209.15.142.32/cat246.htm

edUniverse       The strength of this site is in its search engine. The database allows you to search by grade level, subject, lesson title keywords, and/or subject keywords.   http://www.edUniverse.com/ace_intel/searchplan1999.asp

LessonPlansPage      The lesson plans indexed here have objectives, materials, procedures, anlysis and conlusion questions for students to complete. The list of plans is not large, but it does have a good variety of 9-12 grade science topics.   http://www.lessonplanspage.com/ScienceJH.htm

Science Mini-Lessons      These mini lessons are great ways to demonstrate concepts. The lessons are teacher demonstrations or student activities. Objectives, materials, and procedures are given for each.         http://yn.la.ca.us/cec/cecsci/sci-high.html