Discoveries American Series - Washington
Washington State - A Scenic Tour
Bill Nye the Science Guy - Volcanoes (Talks about Mt St Helen's, the islands of Hawaii, and even Mt Delani National park in Alaska. Good for all the Pacific States.)
E is for Evergreen - A Washington Alphabet
All about WA state - a site that has state facts, state symbols, and other resource links.
FEMA for kids - Mt St Helen's safety and information.
About.com/Washington State - Tons of links (have not checked them all) about WA state and activities for kids. Great resource!
Apple Hangman - Just for fun, but each answer is a different kind of apple!
Recipe for WA:
Grandma Ole's Apple Pie
(Because we live here, these were limited. I didn't think we needed to spend a lot of time on WA state. But it was neat to see a few of these things. I learned some facts about our state I never knew before.)