250 Great STEM Websites and Apps for Kids
National Geographic for Kids Fun Science Stuff
National Georgraphic Games Section - (Mouse over Games to see full selection)
KidPort - (Mostly math and science activities by grade level)
PBS Kids Lab - Games - Many math and technology - also games for the very young!
Weather WizKids - Info, Games, and Experiments about Weather
Stem Games for Kids (Scroll down to get to the games)
STEM – Interactive Online Resources for Students