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 13 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.
Daguerre's photographs, 1839
Salk's polio vaccine, 1955
Edison's electric light bulb, 1879
Pasteur's heating method, 1860s
A.Homes and streets could be lit without flames
B.Children were protected from a disease that could leave them unable to walk
C.Milk and other foods became safer and stayed fresh longer
D.Families could keep true pictures of people for the first time
2.Draw a line from each one to its match.
Carver's farming research, early 1900s
Whitney's cotton gin, 1793
McCormick's reaper, 1831
Bell's telephone, 1876
A.Cotton was cleaned faster, and slavery spread as planters grew more cotton
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 talk to each other over long distances
LessonPrint · D2.Eco.13.3-5 · Set 13 · free to copy for classroom use
Answer key — Inventions That Changed Communities
Set 13. Prints on its own sheet.
1.1. Daguerre's photographs, 1839 — D (Families could keep true pictures of people for the first time) 2. Salk's polio vaccine, 1955 — B (Children were protected from a disease that could leave them unable to walk) 3. Edison's electric light bulb, 1879 — A (Homes and streets could be lit without flames) 4. Pasteur's heating method, 1860s — C (Milk and other foods became safer and stayed fresh longer)
2.1. Carver's farming research, early 1900s — C (Southern farmers learned to rotate crops like peanuts to restore the soil) 2. Whitney's cotton gin, 1793 — A (Cotton was cleaned faster, and slavery spread as planters grew more cotton) 3. McCormick's reaper, 1831 — B (Farmers harvested much more grain with fewer workers) 4. Bell's telephone, 1876 — D (People could talk to each other over long distances)
Last reviewed 2026-09-05. Aligned to D2.Eco.13.3-5 of the C3 Framework for Social Studies State Standards.