Lessons and Resources from Eisenhower Clearinghouse
Links to over fifty sites that have lessons or activities for K-12.
http://www.enc.org/classroom/lessons/nf_lessci.htm
Micro-Units for Grades 9-12 Science
Teacher and student lesson/units from the National Science Foundation.
Must use Adobe Acrobat Reader to download. (available at site)
http://www.gsh.org/nsta/browse.htm
Science Lesson Plans for K-7 (Canada)
A collection of lesson plans from the British Colombia Ministry of Education.
Organized by grade level and science content areas.
http://www.bced.gov.bc.ca/irp/sciencek7/scienc00.htm
Frank Potter's Science Gems
Links to Science Sites and lessons by grade level & topic.
http://www-sci.lib.uci.edu/SEP/earth.html
Kathy Schrock's Resource Guide for Teachers
A popular list of resources including science lesson plans.
http://www.discoveryschool.com/schrockguide