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 16 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.
Fulton's steamboat, 1807
The Wright brothers' airplane, 1903
Carver's farming research, early 1900s
McCormick's reaper, 1831
A.Boats could travel upriver against the current
B.Farmers harvested much more grain with fewer workers
C.Southern farmers learned to rotate crops like peanuts to restore the soil
D.People could travel by powered flight
2.Draw a line from each one to its match.
Whitney's cotton gin, 1793
Morse's telegraph, 1844
Pasteur's heating method, 1860s
Salk's polio vaccine, 1955
A.Cotton was cleaned faster, and slavery spread as planters grew more cotton
B.Children were protected from a disease that could leave them unable to walk
C.Messages crossed long distances in minutes instead of weeks
D.Milk and other foods became safer and stayed fresh longer
LessonPrint · D2.Eco.13.3-5 · Set 16 · free to copy for classroom use
Answer key — Inventions That Changed Communities
Set 16. Prints on its own sheet.
1.1. Fulton's steamboat, 1807 — A (Boats could travel upriver against the current) 2. The Wright brothers' airplane, 1903 — D (People could travel by powered flight) 3. Carver's farming research, early 1900s — C (Southern farmers learned to rotate crops like peanuts to restore the soil) 4. McCormick's reaper, 1831 — B (Farmers harvested much more grain with fewer workers)
2.1. Whitney's cotton gin, 1793 — A (Cotton was cleaned faster, and slavery spread as planters grew more cotton) 2. Morse's telegraph, 1844 — C (Messages crossed long distances in minutes instead of weeks) 3. Pasteur's heating method, 1860s — D (Milk and other foods became safer and stayed fresh longer) 4. Salk's polio vaccine, 1955 — B (Children were protected from a disease that could leave them unable to walk)
Last reviewed 2026-09-05. Aligned to D2.Eco.13.3-5 of the C3 Framework for Social Studies State Standards.