Across
- 4. a moveable control on the tailplane that allows the plane to climb or descend.
- 8. the force of air against any object moving through it.
- 9. a glider that is lifted by wind and attached by a string to the ground.
- 10. mixture of oxygen and other gases that surround the earth.
- 11. an upward force caused by a difference in air pressure.
- 12. a large balloon that rises with the aid of hot air.
- 13. the force that pulls things to the ground.
- 14. structures that extend outward from each side of the airplane.
- 16. the force that moves a plane forward.
- 17. the action of the plane's nose moving from side to side.
- 20. a plane that gets its lift from a powered rotor.
- 22. a set of blades that push or pull an airplane through the air.
- 24. friction of air that resists the forward motion of the plane.
Down
- 1. the force of air pushing on an object.
- 2. a machine capable of flying.
- 3. the action taken when one wing is lowered and the other raised during a turn.
- 5. the fixed tail unit that helps keep the plane stable.
- 6. a large piece of material that slows things down as they fall from great heights.
- 7. as air moves, air pressure drops. Therefore, faster air speeding over an object produces lift.
- 15. the movement of an airplane's nose up or down; also the angle of propeller blades.
- 18. moveable controls on a plane's wings that make it bank.
- 19. an unpowered plane that relies on gravity to fly.
- 21. the action of an airplane banking.
- 23. a moveable control at the rear of the plane that controls direction.