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Inventors and Scientists is a free printable Grade 3 to Grade 5 social studies worksheet on how American inventors and scientists changed daily life, aligned to C3 Framework indicator D2.Eco.13.3-5. It prints 2 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 23 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.

Inventors and Scientists

D2.Eco.13.3-5

NameDate

Draw a line from each person to what they did.

1.Draw a line from each one to its match.
  • Willis Carrier
  • Neil Armstrong
  • Alexander Graham Bell
  • Eli Whitney
  • A.Invented the cotton gin, which made cotton profitable and spread slavery
  • B.Patented the telephone in 1876
  • C.The first person to walk on the Moon, in 1969
  • D.Invented modern air conditioning
2.Draw a line from each one to its match.
  • The Wright brothers
  • John James Audubon
  • Samuel Morse
  • Jonas Salk
  • A.Painted and described the birds of America
  • B.Developed a vaccine against polio
  • C.Made the first powered airplane flight in 1903
  • D.Developed the telegraph and a code of dots and dashes

LessonPrint · D2.Eco.13.3-5 · Set 23 · free to copy for classroom use

Answer key — Inventors and Scientists

Set 23. Prints on its own sheet.

  1. 1.1. Willis Carrier — D (Invented modern air conditioning) 2. Neil Armstrong — C (The first person to walk on the Moon, in 1969) 3. Alexander Graham Bell — B (Patented the telephone in 1876) 4. Eli Whitney — A (Invented the cotton gin, which made cotton profitable and spread slavery)
  2. 2.1. The Wright brothers — C (Made the first powered airplane flight in 1903) 2. John James Audubon — A (Painted and described the birds of America) 3. Samuel Morse — D (Developed the telegraph and a code of dots and dashes) 4. Jonas Salk — B (Developed a vaccine against polio)

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