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.

American Inventors and Their Ideas

D2.Eco.13.3-5

NameDate

Circle the person each sentence describes.

1.Who started a hair-care business and trained thousands of sales agents?

A.Jonas Salk
B.Madam C. J. Walker
C.Samuel Morse

2.Who announced a way to make photographs on metal plates in 1839?

A.George Washington Carver
B.Louis Daguerre
C.Henry Ford

3.Who built a horse-drawn reaper for harvesting wheat?

A.Jonas Salk
B.Grace Hopper
C.Cyrus McCormick

4.Who developed a vaccine against polio in the 1950s?

A.Louis Daguerre
B.Jonas Salk
C.Henry Ford

5.Who invented a traffic signal and a breathing hood that helped rescuers?

A.Cyrus McCormick
B.Louis Pasteur
C.Garrett Morgan

6.Which scientist showed that gently heating a liquid can kill harmful germs?

A.Louis Pasteur
B.Wilbur Wright
C.Alexander Graham Bell

7.Who made the first successful powered airplane flights, in 1903?

A.Lewis and Clark
B.Wilbur and Orville Wright
C.Thomas Edison

8.Who, with the tailor Jacob Davis, made strong work pants with metal rivets, now called jeans?

A.Levi Strauss
B.Louis Pasteur
C.Garrett Morgan

LessonPrint · D2.Eco.13.3-5 · Set 7 · free to copy for classroom use

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

Answer key — American Inventors and Their Ideas