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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 5 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.
  • Whitney's cotton gin, 1793
  • Daguerre's photographs, 1839
  • McCormick's reaper, 1831
  • Bell's telephone, 1876
  • A.Families could keep true pictures of people for the first time
  • B.Farmers harvested much more grain with fewer workers
  • C.People could talk to each other over long distances
  • 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
  • Edison's electric light bulb, 1879
  • Pasteur's heating method, 1860s
  • The Wright brothers' airplane, 1903
  • A.Boats could travel upriver against the current
  • B.People could travel by powered flight
  • C.Milk and other foods became safer and stayed fresh longer
  • D.Homes and streets could be lit without flames

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

Answer key — Inventions That Changed Communities

Set 5. Prints on its own sheet.

  1. 1.1. Whitney's cotton gin, 1793 — D (Cotton was cleaned faster, and slavery spread as planters grew more cotton) 2. Daguerre's photographs, 1839 — A (Families could keep true pictures of people for the first time) 3. McCormick's reaper, 1831 — B (Farmers harvested much more grain with fewer workers) 4. Bell's telephone, 1876 — C (People could talk to each other over long distances)
  2. 2.1. Fulton's steamboat, 1807 — A (Boats could travel upriver against the current) 2. Edison's electric light bulb, 1879 — D (Homes and streets could be lit without flames) 3. Pasteur's heating method, 1860s — C (Milk and other foods became safer and stayed fresh longer) 4. The Wright brothers' airplane, 1903 — B (People could travel by powered flight)

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