HOW AIRPLANES WORK

for power point about HOW AIRPLANES WORKS please download on this link

http://www.4shared.com/file/205605832/829cd749/How_airplanes_work3.html

for more info please read this following article

http://www.howstuffworks.com/airplane.htm

http://www.grc.nasa.gov/WWW/K-12/airplane/guided.htm