I am going to try to post more and more about science for kids in the future. I was inspired a bit by getting some press coverage for being a geeky dad recently (e.g., see The Sexiest Geek Dads in the Galaxy - Io9 the New York Times had a bit about what science toys scientists used as kids and somehow I was included: These Were a Few of Their Favorite Things).
Anyway - here are some pics from the Lawrence Hall of Science. It is worth a visit if you are anywhere near Berkeley and want something to do with your kids that is sciency. We particularly enjoyed the simple star / constellation show at the planetarium.