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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 17 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.Cars clean the air as they drive
  • B.Exhaust from cars adds to air pollution
  • C.The air has no change at all
2.Big dams on Western rivers made electricity and stored water. What did they cost?
  • A.They dried up the ocean
  • B.They flooded valleys and blocked salmon from swimming upstream
  • C.They stopped all rain in the West
3.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
4.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
5.Refrigeration let food travel long distances. What benefit did families get?
  • A.No need to cook at all
  • B.Food that could never spoil
  • C.Fresh food all year round
6.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 makes summers cooler outdoors
  • C.It uses a great deal of electricity
7.Chemical fertilizers raised harvests. What can happen when rain washes them into rivers?
  • A.They turn the water into fuel
  • B.They can harm fish and other water life
  • C.They make the river water cleaner
8.Early steamboats burned wood for fuel. What happened along the rivers?
  • A.The rivers flowed backward
  • B.Forests along the banks were cut down
  • C.New forests grew faster

LessonPrint · D2.Eco.8.3-5 · Set 17 · free to copy for classroom use

Answer key — Inventions and Their Side Effects

Set 17. 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.Slavery spread as planters grew more cotton
  4. 4.It harmed birds such as the bald eagle
  5. 5.Fresh food all year round
  6. 6.It uses a great deal of electricity
  7. 7.They can harm fish and other water life
  8. 8.Forests along the banks were cut down

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