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Social Studies Review

Grade 4 · Stretch challenge · 10 questions · Version PG-IDC29M-1I3S

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1.Why do historians corroborate sources?
2.Why can map projections distort Earth?
3.What is a tariff?
4.How do checks and balances limit power?
5.What is civic participation?
6.What is federalism?
7.How is absolute location expressed?
8.What is judicial review?
9.What does supply and demand help determine?
10.What is opportunity cost?

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 13
  1. Why do historians corroborate sources?To compare evidence and improve reliability
  2. Why can map projections distort Earth?A sphere is flattened onto a plane
  3. What is a tariff?A tax on imported goods
  4. How do checks and balances limit power?Each branch can restrain the others
  5. What is civic participation?Taking part in community and government
  6. What is federalism?Power shared between national and state governments
  7. How is absolute location expressed?Latitude and longitude
  8. What is judicial review?Courts examine whether laws follow the Constitution
  9. What does supply and demand help determine?Prices and quantities in markets
  10. What is opportunity cost?The next-best choice given up

Worked example

Identify the time, place, people, and evidence in the question.

Common mistake

Treating an opinion as a historical fact.

Helpful hint

Look for context and source evidence.