Launchers

September 29, 2008
38 inch average
They built Launchers to learn about different gears.

One group used 24 tooth gears, another used 8 tooth gears, and the girls used 40 tooth gears.
21 inch average
The launcher went 23 inches on the average.
Check out the other two and see which goes longer.
Links of Linda Hamilton hamilton@marshall.edu