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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 19 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.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
3.Air conditioning helped cities in hot places such as Arizona and Florida grow. What is one cost?
  • A.It stops cities from growing
  • B.It uses a great deal of electricity
  • C.It makes summers cooler outdoors
4.Plastic made many goods cheap and light. What problem did it bring?
  • A.It made goods too heavy to carry
  • B.Plastic trash that lasts for hundreds of years
  • C.It made food spoil faster
5.Big dams on Western rivers made electricity and stored water. What did they cost?
  • A.They dried up the ocean
  • B.They stopped all rain in the West
  • C.They flooded valleys and blocked salmon from swimming upstream
6.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
7.The cotton gin made cleaning cotton much faster. What harmful effect followed in the South?
  • A.Slavery spread as planters grew more cotton
  • B.Farmers stopped growing cotton
  • C.Slavery ended right away
8.Vaccines such as the polio vaccine changed medicine. What was the benefit?
  • A.Doctors were no longer needed
  • B.Hospitals had to close
  • C.Fewer people caught dangerous diseases

LessonPrint · D2.Eco.8.3-5 · Set 19 · free to copy for classroom use

Answer key — Inventions and Their Side Effects

Set 19. Prints on its own sheet.

  1. 1.It harmed birds such as the bald eagle
  2. 2.Exhaust from cars adds to air pollution
  3. 3.It uses a great deal of electricity
  4. 4.Plastic trash that lasts for hundreds of years
  5. 5.They flooded valleys and blocked salmon from swimming upstream
  6. 6.Some city neighborhoods were torn down to build them
  7. 7.Slavery spread as planters grew more cotton
  8. 8.Fewer people caught dangerous diseases

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