Science & Technology Trivia Quiz 1

10 questions · 3 multiple choice · 7 number answers · scored out of 1000

Answer everything below, then hit finish for a scored breakdown. Number questions give partial credit for close guesses, so always take a shot.

Elements, the human body and everyday measurements: try ten science questions, from familiar facts to trickier numbers. Finish for your score and short explanations, with sources if you want to explore an answer.

  1. Number answervery hard
  2. Multiple choicehard
    Which pure metal has the highest electrical conductivity at room temperature?
  3. Number answermedium

    Hint: Atomic number 6

  4. Number answereasy
  5. Multiple choiceeasy
    What is the most abundant mineral in the human body?
  6. Number answereasy

    Hint: Systolic is the first number in the reading.

  7. Number answerhard
  8. Multiple choiceeasy
    Which of these body parts contains a lens and a retina?
  9. Number answereasy

    Hint: Use the familiar sea-level boiling point.

  10. Number answermedium

0 of 10 answered · 10 still blank (they score 0)

Answer key

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Answers checked . Explanations and source links are included below.

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  1. Approximately what is the melting point of pure iron, in degrees Celsius?1,538

    Pure iron melts at about 1,538 degrees Celsius. Iron alloys can have different melting ranges. Royal Society of Chemistry: iron

  2. Which pure metal has the highest electrical conductivity at room temperature?Silver

    Silver conducts electricity better than the other pure metals at room temperature. The temperature condition matters when comparing materials. IEEE: silver

  3. How many valence electrons does a neutral carbon atom have?4

    Carbon has six electrons in total: two in its inner shell and four in its outer, or valence, shell. The Open University: valence electrons

  4. How many bones are typically counted in an adult human skeleton?206

    The standard adult count is 206. Some bones that are separate earlier in life fuse as a person grows. OpenStax: the skeletal system

  5. What is the most abundant mineral in the human body?Calcium

    Calcium is the most abundant mineral in the human body. Most of it is stored in bones and teeth. NIH Office of Dietary Supplements: calcium

  6. In a blood-pressure reading of 120/80 mmHg, what is the systolic pressure?120

    Systolic pressure is the first number, so it is 120 mmHg in this example. Diastolic pressure is the second number. This question asks how to read the notation, not what a healthy target should be. MedlinePlus: measuring blood pressure

  7. How many facial bones are in the adult human skull?14

    The adult skull has 14 facial bones and eight cranial bones. The facial-bone count includes the lower jaw, or mandible. OpenStax: the skull

  8. Which of these body parts contains a lens and a retina?Eyes

    The eye contains both. Its lens helps focus light onto the retina, whose light-sensitive cells turn it into signals for the brain. National Eye Institute: how eyes work

  9. At standard atmospheric pressure, approximately what is the boiling point of pure water in degrees Fahrenheit?212

    Water boils at about 212 degrees Fahrenheit, or 100 degrees Celsius, at standard atmospheric pressure. Lower pressure at higher altitudes lowers its boiling point. U.S. Geological Survey: facts about water

  10. How many US fluid ounces are in one US liquid gallon?128

    One US liquid gallon contains 128 US fluid ounces. Fluid ounces measure volume, so this is not a conversion to ounces of weight. U.S. Geological Survey: water volume conversions

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