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 12 of 25 · the same problems every time you open this link.
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.
Edison's electric light bulb, 1879
Morse's telegraph, 1844
Ford's moving assembly line, 1913
Carver's farming research, early 1900s
A.Southern farmers learned to rotate crops like peanuts to restore the soil
B.Cars became cheap enough for many families to buy
C.Messages crossed long distances in minutes instead of weeks
D.Homes and streets could be lit without flames
2.Draw a line from each one to its match.
Pasteur's heating method, 1860s
Salk's polio vaccine, 1955
Fulton's steamboat, 1807
McCormick's reaper, 1831
A.Boats could travel upriver against the current
B.Milk and other foods became safer and stayed fresh longer
C.Farmers harvested much more grain with fewer workers
D.Children were protected from a disease that could leave them unable to walk
LessonPrint · D2.Eco.13.3-5 · Set 12 · free to copy for classroom use
Answer key — Inventions That Changed Communities
Set 12. Prints on its own sheet.
1.1. Edison's electric light bulb, 1879 — D (Homes and streets could be lit without flames) 2. Morse's telegraph, 1844 — C (Messages crossed long distances in minutes instead of weeks) 3. Ford's moving assembly line, 1913 — B (Cars became cheap enough for many families to buy) 4. Carver's farming research, early 1900s — A (Southern farmers learned to rotate crops like peanuts to restore the soil)
2.1. Pasteur's heating method, 1860s — B (Milk and other foods became safer and stayed fresh longer) 2. Salk's polio vaccine, 1955 — D (Children were protected from a disease that could leave them unable to walk) 3. Fulton's steamboat, 1807 — A (Boats could travel upriver against the current) 4. McCormick's reaper, 1831 — C (Farmers harvested much more grain with fewer workers)
Last reviewed 2026-09-05. Aligned to D2.Eco.13.3-5 of the C3 Framework for Social Studies State Standards.