Word Formation - Suffixes

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Across
  1. 2. noun from the verb 'donate'
  2. 3. noun from the verb 'play'
  3. 4. noun from the verb 'reduce'
  4. 5. someone who studies physics
  5. 10. noun from the verb 'alter'
  6. 11. verb from the adjective 'pure'
  7. 12. noun from the verb 'pollute'
Down
  1. 1. noun from the verb 'complicate'
  2. 6. noun from the verb 'teach'
  3. 7. adjective from the verb 'wash'
  4. 8. noun from the verb 'admit'
  5. 9. noun from the verb 'enjoy'