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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 8 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.
  • Samuel Morse
  • The Wright brothers
  • Willis Carrier
  • Alexander Graham Bell
  • A.Developed the telegraph and a code of dots and dashes
  • B.Invented modern air conditioning
  • C.Patented the telephone in 1876
  • D.Made the first powered airplane flight in 1903
2.Draw a line from each one to its match.
  • Jonas Salk
  • George Washington Carver
  • Sally Ride
  • Eli Whitney
  • A.Developed a vaccine against polio
  • B.Invented the cotton gin, which made cotton profitable and spread slavery
  • C.Taught Southern farmers to plant peanuts and sweet potatoes to restore worn-out soil
  • D.The first American woman in space, in 1983

LessonPrint · D2.Eco.13.3-5 · Set 8 · free to copy for classroom use

Answer key — Inventors and Scientists

Set 8. Prints on its own sheet.

  1. 1.1. Samuel Morse — A (Developed the telegraph and a code of dots and dashes) 2. The Wright brothers — D (Made the first powered airplane flight in 1903) 3. Willis Carrier — B (Invented modern air conditioning) 4. Alexander Graham Bell — C (Patented the telephone in 1876)
  2. 2.1. Jonas Salk — A (Developed a vaccine against polio) 2. George Washington Carver — C (Taught Southern farmers to plant peanuts and sweet potatoes to restore worn-out soil) 3. Sally Ride — D (The first American woman in space, in 1983) 4. Eli Whitney — B (Invented the cotton gin, which made cotton profitable and spread slavery)

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