Classroom Activities and Lesson Plans - Earth, space, life and physical science lessons prepared by practicing teachers participating in National Teachers Enhancement Network (NTEN) online courses.
Ian Reed's Science Wizards - Ideas for demonstrations and experiments for use in science classes geared to all ages/abilities. Photographs of demonstrations/experiments included.
Lesson Plans Page - Contains science lesson plans, ideas, thematic units and lab activities for all ages and all branches of science. Sorted by grade level.
MiddleSchoolScience.com - A teacher created site included lesson plans and ideas for middle school level chemistry, physics, life science and earth science.
NASA/MSU-Bozeman CERES Project - Classroom-ready astronomy activities and lessons for levels K-12. Created by a team of master teachers, university faculty, and NASA researchers.
Neuroscience for Kids - Experiments and activities as well as teacher lesson plans about the nervous system and brain.
NIH Curriculum Supplemements - Free, interactive teaching units that combine scientific research discoveries from the U.S. Department of Health and Human Services, and National Institutes of Health, with instructional materials.
Practical Uses of Math and Science - An on-line journal of one-page examples of Math and Science being used in everyday life. Examples are written primarily by scientists and engineers, and are available to teachers, students, and other interested parties. Motivation for interest in these subjects in pre-college education.