Aviation: Our Planes Will Deliver! a WebQuest
Flight WebQuest: a 4th grade WebQuest.
Flight WebQuest (2): be sure to check out the "teacher stuff" link first!
Paper Airplane WebQuest
Wings, Winds & Wonders: The Wright Bros. & First Flight- a 4th grade WebQuest.
Wright Brothers Scavenger Hunt: a very simple online worksheet with specific links to answer each 'fill in the blank question/.
Wright Brothers WebQuest: seems a little involved, but good. Might require teacher generated research questions or structure of some sort and maybe advanced students..