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Inventions That Changed Communities is a free printable Grade 3 to Grade 5 social studies worksheet on how an invention changed work and 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 7 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.

Inventions That Changed Communities

D2.Eco.13.3-5

NameDate

Draw a line from each invention to the change it made.

1.Draw a line from each one to its match.
  • Bell's telephone, 1876
  • Edison's electric light bulb, 1879
  • Morse's telegraph, 1844
  • Whitney's cotton gin, 1793
  • A.Homes and streets could be lit without flames
  • B.People could talk to each other over long distances
  • C.Messages crossed long distances in minutes instead of weeks
  • D.Cotton was cleaned faster, and slavery spread as planters grew more cotton
2.Draw a line from each one to its match.
  • Fulton's steamboat, 1807
  • McCormick's reaper, 1831
  • Pasteur's heating method, 1860s
  • Ford's moving assembly line, 1913
  • A.Cars became cheap enough for many families to buy
  • B.Farmers harvested much more grain with fewer workers
  • C.Milk and other foods became safer and stayed fresh longer
  • D.Boats could travel upriver against the current

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

Answer key — Inventions That Changed Communities

Set 7. Prints on its own sheet.

  1. 1.1. Bell's telephone, 1876 — B (People could talk to each other over long distances) 2. Edison's electric light bulb, 1879 — A (Homes and streets could be lit without flames) 3. Morse's telegraph, 1844 — C (Messages crossed long distances in minutes instead of weeks) 4. Whitney's cotton gin, 1793 — D (Cotton was cleaned faster, and slavery spread as planters grew more cotton)
  2. 2.1. Fulton's steamboat, 1807 — D (Boats could travel upriver against the current) 2. McCormick's reaper, 1831 — B (Farmers harvested much more grain with fewer workers) 3. Pasteur's heating method, 1860s — C (Milk and other foods became safer and stayed fresh longer) 4. Ford's moving assembly line, 1913 — A (Cars became cheap enough for many families to buy)

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