Challenge !!!

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Across
  1. 3. A gift given to someone.
  2. 4. A small, round piece of metal used as money.
  3. 5. A pain in your stomach.
  4. 7. Feeling unhappy or worried.
  5. 9. To say “sorry” to someone.
Down
  1. 1. The science that studies energy, force and movement.
  2. 2. A doctor who takes care of people’s teeth.
  3. 3. A person who writes computer programs.
  4. 6. To say or do something again.
  5. 8. A sharp tool used for cutting things.