11 items
Let's Try It Out in the Air
Hands-on Early-learning Science Activities
Unknown - 2001
The Flying Machine Book
Build and Launch 35 Rockets, Gliders, Helicopters, Boomerangs, and More
Book - 2012
Green Science Projects for A Sustainable Planet
Book - 2011
Hot Air
The (mostly) True Story of the First Hot-air Balloon Ride
Book - 2005
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