Puzzles with Tabula Rasa

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Across
  1. 2. an educational institution
  2. 3. risk money to get something
  3. 4. a synthetic material made of polymers
  4. 8. the solid substance made up of minerals
  5. 10. a cloudlike mass of tiny droplets
  6. 11. right to vote
  7. 12. smallest form of a chemical element
  8. 13. the card the gives certain rights, to enter a place, or to travel by public transport
Down
  1. 1. a kind of sport
  2. 2. a person who is studying
  3. 5. a place from where planes take-off and land on
  4. 6. to move following a rhythm
  5. 7. one who serves in an army
  6. 9. state of matter that takes the shape of its container