Science Net Links
http://www.sciencenetlinks.com/tool_index.cfm
Amercan Association of Advancement of Sciences. This site offers many links to interactive web games, lesson plans and student resources on many science topics.
Wonderville
http://www.wonderville.ca/
Lots of cool interactive activities and videos about science.
Wonderopolis
http://wonderopolis.org/
Find the answer to a lot of things you can Wonder about
National Geographic for Kids
https://kids.nationalgeographic.com/
National Geographic website including games, articles and videos on animals and other fun nature topics