school by H

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Across
  1. 2. often about chemicals
  2. 4. a break at 12:00
  3. 6. at lunch people ____
  4. 8. a synonym for friend
  5. 9. the past
Down
  1. 1. searching about a certain thing to gain knowledge
  2. 3. your first year at real school
  3. 5. the use of calculation
  4. 7. singing together