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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 11 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.
  • Neil Armstrong
  • The Wright brothers
  • George Washington Carver
  • Willis Carrier
  • A.Invented modern air conditioning
  • B.Taught Southern farmers to plant peanuts and sweet potatoes to restore worn-out soil
  • C.Made the first powered airplane flight in 1903
  • D.The first person to walk on the Moon, in 1969
2.Draw a line from each one to its match.
  • Alexander Graham Bell
  • Samuel Morse
  • Eli Whitney
  • Cyrus McCormick
  • A.Invented the cotton gin, which made cotton profitable and spread slavery
  • B.Patented the telephone in 1876
  • C.Built a mechanical reaper that harvested grain quickly
  • D.Developed the telegraph and a code of dots and dashes

LessonPrint · D2.Eco.13.3-5 · Set 11 · free to copy for classroom use

Answer key — Inventors and Scientists

Set 11. Prints on its own sheet.

  1. 1.1. Neil Armstrong — D (The first person to walk on the Moon, in 1969) 2. The Wright brothers — C (Made the first powered airplane flight in 1903) 3. George Washington Carver — B (Taught Southern farmers to plant peanuts and sweet potatoes to restore worn-out soil) 4. Willis Carrier — A (Invented modern air conditioning)
  2. 2.1. Alexander Graham Bell — B (Patented the telephone in 1876) 2. Samuel Morse — D (Developed the telegraph and a code of dots and dashes) 3. Eli Whitney — A (Invented the cotton gin, which made cotton profitable and spread slavery) 4. Cyrus McCormick — C (Built a mechanical reaper that harvested grain quickly)

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