16 Interesting facts abour running

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Across
  1. 1. There are 206 of these in a human skeleton.
  2. 3. Adjective used of running 5,000m or more.
  3. 6. Someone who takes part in any sport.
  4. 8. American English word for running shoes or training shoes
  5. 9. Break, especially when used about the body.
  6. 13. Someone who does no exercises but watches TV instead. (5,6)
  7. 14. A race over 42.195 kilometres or 26 miles and 385 yards.
  8. 17. Thick, strong, string-like parts of your body that connect muscles to bones.
  9. 18. What you need to keep doing exercise.
  10. 20. Speed.
  11. 22. To use energy by running (3,2)
  12. 23. Make better or stronger.
Down
  1. 2. Another word for a runner's step.
  2. 4. Not allowed to take part.
  3. 5. 1.60934km.
  4. 7. How well or badly you do at something.
  5. 10. Finish.
  6. 11. Strong material, similar to muscle, that joins bones or holds an organ in its place.
  7. 12. vessels Tubes through which blood flows in your body.
  8. 15. The best time in which someone has completed a race over a set distance.
  9. 16. Someone who runs for pleasure and fitness rather than fast times
  10. 19. Parts inside your body which carry messages between the brain and other parts of the body.
  11. 21. The places where your body bends.