are kids getting enough exercise?

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Across
  1. 4. an activity that requires physical effort and often improves health and fitness.
  2. 6. a young human under the age of 18
  3. 7. a room with equipment for doing physical exercise.
Down
  1. 1. a younger person in the process of developing from a child into an adult
  2. 2. gym but outside
  3. 3. a person between the age 13 and 19
  4. 5. an institution for educating children