Career Crossword puzzle

123456
Across
  1. 2. protects general public.
  2. 4. does experiments like tubes.
  3. 5. answers calls takes messages.
  4. 6. fixes pipes and toilets.
Down
  1. 1. teaches kids math and reading.
  2. 2. takes pictures.
  3. 3. flies a plane.
  4. 5. fights for wars like world war 3.