link: www.spaceweather.com
A great, useful free source for daily info about the Sun-Earth Environment (their words). Constant updates about daily astronomical events: sunspots and monitoring of the sun (like how we are in solar cycle #24 and deep into the sunspot minimum); aurora's (pictures, potential events); neat things to see in the nighttime-daytime sky; meteor showers; Noctilucent clouds; near Earth asteroids (and lots more).
Recommended by Paul Williams
link: www.geology.com
Updated daily, features up-to-date news concerning the Earth sciences. A great source of information.
Recommended by Paul Williams
link: www.cosee.net
Centers for Ocean Sciences Education Excellence; promotes ocean literacy and partnerships between educators and research scientists. The "Resources" tab includes resources for educators including lesson plans sent in by other educators.
Recommended by Andrea W. Polizos
link: www.childrenandnature.org
This site is the center of the movement to reconnect children with nature. This movement began with Richard Louv's book, "Last Child in the Woods: Saving Our Children From Nature-Deficit Disorder"
Recommended by Andrea W. Polizos
link:  aaenvironment.com/Electricity.htm
Recommended by Mrs. Morrison's class at Green Mountain Central School District
link: www.webelements.com
Recommended by Brian Wazlaw
link: www.exploratorium.edu
Webpage for San Francisco's amazing hands-on science museum. At top of page go to "educate". Find "Science Snacks". These are descriptions of how to build classroom versions of popular museum exhibits. Self-explanatory website with boatloads of useful ideas for all science teachers.
Recommended by Doug Stith
link: www.sciencetoymaker.org
Created by a Pennsylvania science teacher, this website describes how to build a number of "science toys". He has them separated into "quick and easy" and "advanced". I built his Putt Putt Boats ("advanced") with no trouble. Very clear, detailed plans.
Recommended by Doug Stith
link: science.howstuffworks.com
HowStuffWorks Science has explanations and colorful illustrations related to earth science, life science, and other wonders of the physical world.
Recommended by Brian Wazlaw
link: www.mysciencebox.org
"At My Science Box you'll find complete, scaffolded lesson plans to teach a 4-6 week middle school science unit through activities, projects, and field trips. Every lesson has been kid-tested with students at Archway School."
Recommended by Dan Heath
link: www.sciencespot.net
It is just a great place to find great science lesson and unit plans. In addition, it has a great section to help those doing science fairs.
Recommended by Dan Heath
link: www.middleschoolscience.com
A great site to find middle school science lesson plans.
Recommended by Dan Heath
 
Wolfram|Alpha is the first step in an ambitious, long-term project to make all systematic knowledge immediately computable by anyone. Enter your question or calculation and Wolfram|Alpha uses its built-in algorithms and a growing collection of data to compute the answer.
Recommended by Steve Roberts
 
 
link: nhepscor.org/
NH EPSCoR site.
 
link: www.hubbardbrookfoundation.org
Hubbard Brook Foundation
Access materials for mock NECAP inquiry test questions
 
link: www.gmpdc.org
Greater Manchester Professional Development Center.
Recommended by Lisa LaValley
link: extension.unh.edu/GISGPS/GISGPS.htm
UNH Cooperative Extension Service-Geospacial Technologies.
Recommended by Lisa LaValley
link: www.wildlife.state.nh.us/Education/education.htm
link: NSTA Science Safety Agreement
link: Student Safety Agreement