Aerospace Unit #2 "How Birds Fly"

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Across
  1. 2. bird ______ are lighter than jaws, teeth and nose would be
  2. 3. feathers that help with lift and soaring
  3. 9. force over an area
  4. 10. wings that enable birds to soar or fly for a long time without beating their wings
  5. 11. humans cannot fly because their chest and arm _____ are not strong enough
  6. 12. wings that have long main feathers extending out, forming slots
  7. 14. wings that allow a bird to take off quickly and fly at high speeds for a long time
Down
  1. 1. there are 4 major types of bird wing ________
  2. 2. ______'s principle says that, as the speed of a fluid decreases, pressure increases
  3. 4. the shape of the cross section of a wing that helps create lift
  4. 5. feathers that propel the bird forward and help it steer
  5. 6. when birds flap their wings, the front is slightly _______ than the back
  6. 7. bird ______ are light and hollow, with cross pieces for strength
  7. 8. force that creates a forward push
  8. 10. force that creates and upward push
  9. 13. another name for "leading edge" feathers