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16 multiple-choice questions on Other Ancient Civilizations (Americas, Africa), about 11% of the 6th Grade Social Studies bank. Every one carries a written rationale.
Other Ancient Civilizations (Americas, Africa) is one of 6 chapters in CoStudy's 6th Grade Social Studies bank, and it holds 16 of the bank's 150 multiple-choice questions — roughly 11% of the total. That proportion is not arbitrary: chapters follow the certifying body's published exam outline, and the number of questions in each is set by that domain's published weight, so the share of your practice time this chapter takes matches the share of the real exam it accounts for.
Studying by chapter is worth doing once you have a diagnostic score. A single overall percentage tells you whether you are close; it does not tell you which domain is dragging. Working a weak chapter in isolation, and re-testing it in isolation, is the fastest way to move a score that has stalled — and it is why the mock exams in CoStudy report by domain rather than as one number.
2 questions drawn from this chapter, with the full rationale shown — the controlling principle behind the right answer, and why each wrong option tempts and fails.
The world's largest desert is:
Answer: C — Actually the Antarctic — by definition (low precipitation), Antarctica is the world's largest desert; the Sahara is the largest HOT desert
Common misconception — deserts are defined by low precipitation, not heat. (A) is the largest hot desert; (B), (D) are smaller deserts.
A primary reason to study ancient civilizations is to:
Answer: C — Understand the foundations of modern institutions, technologies, and ideas
C) Continuity-and-change is a core social-studies practice. A) Memorization without context fails. B/D) Off topic.
These are a sample. The full Other Ancient Civilizations (Americas, Africa) chapter runs 16 items with per-chapter progress tracking, on the web and in the iOS app.
Open 6th Grade Social Studies in CoStudy →