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 23 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
McCormick's reaper, 1831
Ford's moving assembly line, 1913
Morse's telegraph, 1844
A.Cars became cheap enough for many families to buy
B.Farmers harvested much more grain with fewer workers
C.Homes and streets could be lit without flames
D.Messages crossed long distances in minutes instead of weeks
2.Draw a line from each one to its match.
Salk's polio vaccine, 1955
Bell's telephone, 1876
Daguerre's photographs, 1839
Carver's farming research, early 1900s
A.Children were protected from a disease that could leave them unable to walk
B.Southern farmers learned to rotate crops like peanuts to restore the soil
C.People could talk to each other over long distances
D.Families could keep true pictures of people for the first time
LessonPrint · D2.Eco.13.3-5 · Set 23 · free to copy for classroom use
Answer key — Inventions That Changed Communities
Set 23. Prints on its own sheet.
1.1. Edison's electric light bulb, 1879 — C (Homes and streets could be lit without flames) 2. McCormick's reaper, 1831 — B (Farmers harvested much more grain with fewer workers) 3. Ford's moving assembly line, 1913 — A (Cars became cheap enough for many families to buy) 4. Morse's telegraph, 1844 — D (Messages crossed long distances in minutes instead of weeks)
2.1. Salk's polio vaccine, 1955 — A (Children were protected from a disease that could leave them unable to walk) 2. Bell's telephone, 1876 — C (People could talk to each other over long distances) 3. Daguerre's photographs, 1839 — D (Families could keep true pictures of people for the first time) 4. Carver's farming research, early 1900s — B (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.