Jefferson Lab is a good place to find educational online games and puzzles. I initially discovered this resource a couple of years ago when one of my students played “Who Wants to Win $1,000,000?” during a study hall period, she had learned about it from one of her other teachers. The games and puzzles on the Jefferson Lab site are math and science games with one word game thrown in for good measure.
Applications for Education
The games from Jefferson Lab could be good practice for applying science and math knowledge to problem solving. Jefferson Lab also has a Teacher Resources page full of lesson plans for hands-on activities, study pages, and reference materials.