Scratch & Sketch Take Flight In order to continuously vary

In order to continuously vary gear ratios

maybe it's a statement of fact

museum quality paper provides a glare-free puzzle image

and 20 pages for your own sketches

this model speaks of a time of budding innovation and industrial fervor

Scratch & Sketch Take Flight In order to continuously varyScratch and Sketch your way on a high flying journey through time! Find out who built (and flew!) the first airplane. Discover amazing flying machines from the space shuttle to rescue helicopters to aerobatic planes. Trace outlines of cool jets and giant hot air balloons. Add your own personal scratch and sketch touches! Art activity book comes with a wooden stylus for scratching away the black coating to reveal the shining glitter or brilliant