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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 6 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 harmed birds such as the bald eagle
  • B.It made crops grow taller
  • C.It helped birds lay stronger eggs
2.Plastic made many goods cheap and light. What problem did it bring?
  • A.It made food spoil faster
  • B.It made goods too heavy to carry
  • C.Plastic trash that lasts for hundreds of years
3.The Interstate Highways let trucks carry goods fast. What was one cost?
  • A.Trucks became slower
  • B.Railroads were all made illegal
  • C.Some city neighborhoods were torn down to build them
4.The cotton gin made cleaning cotton much faster. What harmful effect followed in the South?
  • A.Farmers stopped growing cotton
  • B.Slavery ended right away
  • C.Slavery spread as planters grew more cotton
5.Early steamboats burned wood for fuel. What happened along the rivers?
  • A.New forests grew faster
  • B.Forests along the banks were cut down
  • C.The rivers flowed backward
6.Chemical fertilizers raised harvests. What can happen when rain washes them into rivers?
  • A.They turn the water into fuel
  • B.They make the river water cleaner
  • C.They can harm fish and other water life
7.Cars let families live farther from work. What is one side effect for the air?
  • A.The air has no change at all
  • B.Cars clean the air as they drive
  • C.Exhaust from cars adds to air pollution
8.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

LessonPrint · D2.Eco.8.3-5 · Set 6 · free to copy for classroom use

Answer key — Inventions and Their Side Effects

Set 6. Prints on its own sheet.

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

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