Planet Science, a site for all children who study science and the teachers and other adults who support them. Mostly aimed at 11-19 yr olds, with some under 11 activities.
The kids from Green Mountain might be interested in the page on Using QR codes in education - they sent me a link to a site on Qr codes to post here.
Engineering Games - Sometimes the best way to understand what engineers do is to try your hand at it! This page links to several engineering games on the internet to give you a first hand try at the problem solving skills engineers employ every day!
PC's in Space, free educational software (several different programs, at beginning to advanced levels, which include science games and quizes, earth curricula ready for classroom inclusion, and many images of space taken by the Hubble Space Telescope as well as images of earth taken from space.)
A 'cybercopia of physics knowledge'
for school students, teachers and anyone else with an interest in physics,
from the Institute of Physics.
Goal is to make finding useful physics information on the web easier.
Includes links to educational resources,
and also let's you explore the physics all around you
through an animated cartoon street.
Physics 2000 an interactive journey through modern physics! Have fun learning visually and conceptually about 20th Century science and high-tech devices.
Ben's Guide to the US Government for Kids - has games for all age ranges in K-12, science website links, career website links, and other US Government information and learning tools for K-12 students, parents, and teachers.
Science News for Kids, a website
devoted to science news for children of ages 9 to 13. From Science Service, the publisher of Science News (for adults), a nonprofit corporation with the mission of advancing the popular understanding of science through publications and educational programs.