Krampf.com is a wonderful science gem. You will find not only experiments, but great videos, too. These are not the fast, flashy, gross, loud, or otherwise more-noise-than-science type videos. They're informative, interesting, and funny! He does not in any way water down concepts, yet he does not dry them out, either.
While you do need to pay $20 for an annual subscription he has a lot of free material as well, including some of the videos. You can subscribe to his weekly experiment newsletter, too, and view a long list of experiment ideas. I find it well worth the money.