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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 18 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.

LessonPrint · D2.Eco.13.3-5 · Set 18 · free to copy for classroom use

Answer key — Inventions That Changed Communities

Set 18. Prints on its own sheet.

  1. 1.1. Pasteur's heating method, 1860s — D (Milk and other foods became safer and stayed fresh longer) 2. Morse's telegraph, 1844 — A (Messages crossed long distances in minutes instead of weeks) 3. McCormick's reaper, 1831 — C (Farmers harvested much more grain with fewer workers) 4. Daguerre's photographs, 1839 — B (Families could keep true pictures of people for the first time)
  2. 2.1. Bell's telephone, 1876 — C (People could talk to each other over long distances) 2. Salk's polio vaccine, 1955 — B (Children were protected from a disease that could leave them unable to walk) 3. Fulton's steamboat, 1807 — D (Boats could travel upriver against the current) 4. Carver's farming research, early 1900s — A (Southern farmers learned to rotate crops like peanuts to restore the soil)

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