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American Inventors and Their Ideas is a free printable Grade 3 to Grade 5 social studies worksheet on naming the inventor or founder behind a new technology or business, aligned to C3 Framework indicator D2.Eco.13.3-5. It prints 8 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 4 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

American Inventors and Their Ideas

D2.Eco.13.3-5

NameDate

Circle the person each sentence describes.

1.Who used a moving assembly line to build the Model T car cheaply?
  • A.Samuel Morse
  • B.Henry Ford
  • C.Louis Pasteur
2.Who developed a vaccine against polio in the 1950s?
  • A.Henry Ford
  • B.Jonas Salk
  • C.Louis Daguerre
3.Who invented the telephone in 1876?
  • A.Alexander Graham Bell
  • B.Jonas Salk
  • C.Cyrus McCormick
4.Who made the first successful powered airplane flights, in 1903?
  • A.Wilbur and Orville Wright
  • B.Lewis and Clark
  • C.Thomas Edison
5.Who started a hair-care business and trained thousands of sales agents?
  • A.Madam C. J. Walker
  • B.Jonas Salk
  • C.Samuel Morse
6.Who, with the tailor Jacob Davis, made strong work pants with metal rivets, now called jeans?
  • A.Garrett Morgan
  • B.Louis Pasteur
  • C.Levi Strauss
7.Who invented a traffic signal and a breathing hood that helped rescuers?
  • A.Cyrus McCormick
  • B.Garrett Morgan
  • C.Louis Pasteur
8.Who found new uses for peanuts and taught farmers to rotate crops?
  • A.Wilbur Wright
  • B.Alexander Graham Bell
  • C.George Washington Carver

LessonPrint · D2.Eco.13.3-5 · Set 4 · free to copy for classroom use

Answer key — American Inventors and Their Ideas

Set 4. Prints on its own sheet.

  1. 1.Henry Ford
  2. 2.Jonas Salk
  3. 3.Alexander Graham Bell
  4. 4.Wilbur and Orville Wright
  5. 5.Madam C. J. Walker
  6. 6.Levi Strauss
  7. 7.Garrett Morgan
  8. 8.George Washington Carver

Last reviewed 2026-09-05. Aligned to D2.Eco.13.3-5 of the C3 Framework for Social Studies State Standards.