Everyday Science MCQs with Answers

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19 questions · Tap "Show answer" to check yourself.

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  1. 1. Which planet is closest to the Sun?

    • A. Venus
    • B. Mercury
    • C. Mars
    • D. Earth
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    B. Mercury

  2. 2. What is the chemical formula of common table salt?

    • A. NaCl
    • B. KCl
    • C. CaCO3
    • D. NaOH
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    A. NaClTable salt is sodium chloride.

  3. 3. Which organ pumps blood throughout the human body?

    • A. Lungs
    • B. Liver
    • C. Kidneys
    • D. Heart
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    D. Heart

  4. 4. Which instrument is used to measure temperature?

    • A. Barometer
    • B. Hygrometer
    • C. Thermometer
    • D. Ammeter
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    C. Thermometer

  5. 5. What is the boiling point of water at sea level?

    • A. 90°C
    • B. 100°C
    • C. 110°C
    • D. 120°C
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    B. 100°C

  6. 6. Deficiency of Vitamin C causes which disease?

    • A. Scurvy
    • B. Rickets
    • C. Night blindness
    • D. Beriberi
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    A. Scurvy

  7. 7. Which gas is most abundant in the Earth's atmosphere?

    • A. Oxygen
    • B. Nitrogen
    • C. Carbon dioxide
    • D. Argon
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    B. NitrogenNitrogen makes up about 78% of the air.

  8. 8. What is the chemical symbol of gold?

    • A. Go
    • B. Gd
    • C. Ag
    • D. Au
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    D. Au

  9. 9. Which planet is known as the Red Planet?

    • A. Venus
    • B. Jupiter
    • C. Mars
    • D. Mercury
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    C. Mars

  10. 10. What is the approximate speed of light?

    • A. 3,000 km/s
    • B. 30,000 km/s
    • C. 300,000 km/s
    • D. 3,000,000 km/s
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    C. 300,000 km/s

  11. 11. Which organ purifies (filters) the blood in the human body?

    • A. Heart
    • B. Lungs
    • C. Liver
    • D. Kidneys
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    D. Kidneys

  12. 12. How many bones are there in an adult human body?

    • A. 186
    • B. 206
    • C. 226
    • D. 300
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    B. 206

  13. 13. Which is the hardest natural substance?

    • A. Diamond
    • B. Iron
    • C. Gold
    • D. Quartz
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    A. Diamond

  14. 14. Which is the largest planet in our solar system?

    • A. Saturn
    • B. Earth
    • C. Jupiter
    • D. Neptune
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    C. Jupiter

  15. 15. What is the SI unit of electric current?

    • A. Volt
    • B. Ampere
    • C. Ohm
    • D. Watt
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    B. Ampere

  16. 16. Which vitamin is produced in our skin by sunlight?

    • A. Vitamin A
    • B. Vitamin B12
    • C. Vitamin C
    • D. Vitamin D
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    D. Vitamin D

  17. 17. What is the normal temperature of the human body?

    • A. 98.6°F
    • B. 96.4°F
    • C. 100.2°F
    • D. 102°F
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    A. 98.6°F98.6°F is equal to 37°C.

  18. 18. Which gas do plants absorb for photosynthesis?

    • A. Oxygen
    • B. Nitrogen
    • C. Carbon dioxide
    • D. Hydrogen
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    C. Carbon dioxide

  19. 19. What is the chemical formula of water?

    • A. CO2
    • B. H2O
    • C. O2
    • D. NaCl
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    B. H2O