I went on another field trip with my daughter's 4th grade class the other day.
We went to the Pacific Science Center near the Space Needle in Seattle to see the Harry Potter exhibit. It was fun to see all the costuming for the Harry Potter movies. I wish I could show you some of the items but unfortunately they don't allow any photography in the exhibit.
But, we also visited some of the other exhibits at the Pacific Science Center. There are a lot of interactive displays for the kids to explore.
The insect house with the butterfly atrium was fun.