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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 20 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.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
2.Big dams on Western rivers made electricity and stored water. What did they cost?
  • A.They flooded valleys and blocked salmon from swimming upstream
  • B.They stopped all rain in the West
  • C.They dried up the ocean
3.Air conditioning helped cities in hot places such as Arizona and Florida grow. What is one cost?
  • A.It uses a great deal of electricity
  • B.It makes summers cooler outdoors
  • C.It stops cities from growing
4.The cotton gin made cleaning cotton much faster. What harmful effect followed in the South?
  • A.Slavery ended right away
  • B.Slavery spread as planters grew more cotton
  • C.Farmers stopped growing cotton
5.The pesticide DDT killed insect pests. What did scientists find it also did?
  • A.It made crops grow taller
  • B.It harmed birds such as the bald eagle
  • C.It helped birds lay stronger eggs
6.Chemical fertilizers raised harvests. What can happen when rain washes them into rivers?
  • A.They can harm fish and other water life
  • B.They make the river water cleaner
  • C.They turn the water into fuel
7.The Interstate Highways let trucks carry goods fast. What was one cost?
  • A.Railroads were all made illegal
  • B.Trucks became slower
  • C.Some city neighborhoods were torn down to build them
8.Plastic made many goods cheap and light. What problem did it bring?
  • A.Plastic trash that lasts for hundreds of years
  • B.It made goods too heavy to carry
  • C.It made food spoil faster

LessonPrint · D2.Eco.8.3-5 · Set 20 · free to copy for classroom use

Answer key — Inventions and Their Side Effects

Set 20. Prints on its own sheet.

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

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