How Do You Ollie?

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Across
  1. 1. Something that stops progress
  2. 3. Force of attraction that causes objects to fall to earth
  3. 4. Surface resistance to motion and movement
  4. 5. Slang or special words used by a group of people
  5. 7. To manage skillfully
  6. 10. A performance displaying a person's skill
  7. 11. To cut or tear in to small pieces
Down
  1. 2. To change in form or appearance
  2. 6. A person skilled at something
  3. 8. In the air
  4. 9. Science that deals with matter, energy, motion, force