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 21 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
Carver's farming research, early 1900s
McCormick's reaper, 1831
Whitney's cotton gin, 1793
A.Farmers harvested much more grain with fewer workers
B.Cotton was cleaned faster, and slavery spread as planters grew more cotton
C.Southern farmers learned to rotate crops like peanuts to restore the soil
D.Homes and streets could be lit without flames
2.Draw a line from each one to its match.
Daguerre's photographs, 1839
Morse's telegraph, 1844
Ford's moving assembly line, 1913
The Wright brothers' airplane, 1903
A.People could travel by powered flight
B.Messages crossed long distances in minutes instead of weeks
C.Cars became cheap enough for many families to buy
D.Families could keep true pictures of people for the first time
LessonPrint · D2.Eco.13.3-5 · Set 21 · free to copy for classroom use
Answer key — Inventions That Changed Communities
Set 21. Prints on its own sheet.
1.1. Edison's electric light bulb, 1879 — D (Homes and streets could be lit without flames) 2. Carver's farming research, early 1900s — C (Southern farmers learned to rotate crops like peanuts to restore the soil) 3. McCormick's reaper, 1831 — A (Farmers harvested much more grain with fewer workers) 4. Whitney's cotton gin, 1793 — B (Cotton was cleaned faster, and slavery spread as planters grew more cotton)
2.1. Daguerre's photographs, 1839 — D (Families could keep true pictures of people for the first time) 2. Morse's telegraph, 1844 — B (Messages crossed long distances in minutes instead of weeks) 3. Ford's moving assembly line, 1913 — C (Cars became cheap enough for many families to buy) 4. The Wright brothers' airplane, 1903 — A (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.