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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 2 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.Henry Ford
  • B.Louis Pasteur
  • C.Samuel Morse
2.Who, with the tailor Jacob Davis, made strong work pants with metal rivets, now called jeans?
  • A.Levi Strauss
  • B.Garrett Morgan
  • C.Louis Pasteur
3.Who helped create early computer programming languages?
  • A.Cyrus McCormick
  • B.Grace Hopper
  • C.Louis Daguerre
4.Who invented a traffic signal and a breathing hood that helped rescuers?
  • A.Garrett Morgan
  • B.Cyrus McCormick
  • C.Louis Pasteur
5.Who made the first successful powered airplane flights, in 1903?
  • A.Wilbur and Orville Wright
  • B.Thomas Edison
  • C.Lewis and Clark
6.Who started a hair-care business and trained thousands of sales agents?
  • A.Samuel Morse
  • B.Madam C. J. Walker
  • C.Jonas Salk
7.Who developed a vaccine against polio in the 1950s?
  • A.Jonas Salk
  • B.Louis Daguerre
  • C.Henry Ford
8.Who built a horse-drawn reaper for harvesting wheat?
  • A.Cyrus McCormick
  • B.Jonas Salk
  • C.Grace Hopper

LessonPrint · D2.Eco.13.3-5 · Set 2 · free to copy for classroom use

Answer key — American Inventors and Their Ideas

Set 2. Prints on its own sheet.

  1. 1.Henry Ford
  2. 2.Levi Strauss
  3. 3.Grace Hopper
  4. 4.Garrett Morgan
  5. 5.Wilbur and Orville Wright
  6. 6.Madam C. J. Walker
  7. 7.Jonas Salk
  8. 8.Cyrus McCormick

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