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The Human Brain: The Organ Studying Itself

SheelonBiologyScienceEnglishGrades 9-12Published Aug 5, 2026

Billions of neurons, an organ that cannot feel pain, and a reason sleep matters more than you think. Ten questions on the strangest object we know of.

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Questions in this quiz

All 10 shown. Answers not revealed.

  1. Roughly how many neurons does a human brain contain?

    Multiple Choice · 20s

    AAbout 8 million
    BAbout 800 million
    CAbout 86 billion
    DAbout 86 trillion

  2. Which part of the brain handles balance and coordination?

    Multiple Choice · 20s

    AThe cerebellum
    BThe hippocampus
    CThe frontal lobe
    DThe brain stem

  3. The brain itself has no pain receptors.

    True / False · 20s

    TRUE
    FALSE
  4. Which structure is central to forming new memories?Multiple Choice · 20s
  5. What is the gap between two neurons where signals pass called? (one word)Type Answer · 30s
  6. Roughly what share of the body's energy does the brain use?Multiple Choice · 20s
  7. Sleep helps the brain store what you learned during the day.True / False · 20s
  8. What does the frontal lobe mainly handle?Multiple Choice · 20s
  9. Why does a reflex happen faster than a decision?Multiple Choice · 20s
  10. What is the brain's ability to change and rewire itself called? (one word)Type Answer · 30s

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