Teens 3 unit 5

123456789
Across
  1. 4. the action or process of flying through the air
  2. 5. develop gradually, especially from a simple to a more complex form
  3. 7. the maximum extent across the wings of an aircraft
  4. 9. move with a smooth continuous motion, typically with little noise
Down
  1. 1. restricted in size, amount, or extent; few, small, or short
  2. 2. having a hole or empty space inside
  3. 3. (of a bird) move (its wings) up and down when flying or preparing to fly
  4. 6. the power or ability to do something
  5. 8. to sail or hover in the air often at a great height