Make nouns from the give words

• invent - (who?)
  [ ]

• discover - (who?)
  [ ]

• discover - (what?)
  [ ]

• graduate - (who?)
  [ ]

• graduate - (what?)
  [ ]

• fly - (what?)

  [ ]

• biology - (who?)
  [ ]

• perform - (what?)
  [ ]

• science - (who?)
  [ ]