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Inventions and Their Side Effects is a free printable Grade 3 to Grade 5 social studies worksheet on the benefits and side effects of American inventions, aligned to C3 Framework indicator D2.Eco.8.3-5. It prints 8 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 2 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Inventions and Their Side Effects

D2.Eco.8.3-5

NameDate

Circle the best answer.

1.The pesticide DDT killed insect pests. What did scientists find it also did?
  • A.It helped birds lay stronger eggs
  • B.It harmed birds such as the bald eagle
  • C.It made crops grow taller
2.Early steamboats burned wood for fuel. What happened along the rivers?
  • A.Forests along the banks were cut down
  • B.New forests grew faster
  • C.The rivers flowed backward
3.The telegraph sent news across the country in minutes. How did that help people?
  • A.They no longer needed newspapers ever again
  • B.Letters arrived a week later than before
  • C.They could learn about events the same day
4.The Interstate Highways let trucks carry goods fast. What was one cost?
  • A.Some city neighborhoods were torn down to build them
  • B.Trucks became slower
  • C.Railroads were all made illegal
5.The cotton gin made cleaning cotton much faster. What harmful effect followed in the South?
  • A.Slavery ended right away
  • B.Farmers stopped growing cotton
  • C.Slavery spread as planters grew more cotton
6.Big dams on Western rivers made electricity and stored water. What did they cost?
  • A.They stopped all rain in the West
  • B.They flooded valleys and blocked salmon from swimming upstream
  • C.They dried up the ocean
7.Plastic made many goods cheap and light. What problem did it bring?
  • A.Plastic trash that lasts for hundreds of years
  • B.It made food spoil faster
  • C.It made goods too heavy to carry
8.Cars let families live farther from work. What is one side effect for the air?
  • A.Exhaust from cars adds to air pollution
  • B.Cars clean the air as they drive
  • C.The air has no change at all

LessonPrint · D2.Eco.8.3-5 · Set 2 · free to copy for classroom use

Answer key — Inventions and Their Side Effects

Set 2. Prints on its own sheet.

  1. 1.It harmed birds such as the bald eagle
  2. 2.Forests along the banks were cut down
  3. 3.They could learn about events the same day
  4. 4.Some city neighborhoods were torn down to build them
  5. 5.Slavery spread as planters grew more cotton
  6. 6.They flooded valleys and blocked salmon from swimming upstream
  7. 7.Plastic trash that lasts for hundreds of years
  8. 8.Exhaust from cars adds to air pollution

Last reviewed 2026-09-05. Aligned to D2.Eco.8.3-5 of the C3 Framework for Social Studies State Standards.