Flight - gr. 6

Interactive:  http://futureflight.arc.nasa.gov/map.html

http://www.wonderville.ca/browse/teachers?pid=6&sid=26


http://www.boeing.com/companyoffices/aboutus/wonder_of_flight/how_things.html
Open the above link and click on all the items.  Using the information profided answer the following questions:
1.  What is an airfoil?
2.  How does an airplane fly?
3.  How does a bird fly through the air?
*Make sure all answers are in your own words.  You may add diagrams.