From timeless classics to current hits! Test your fundamental science knowledge.
5
Questions
1
Minute
5
Games
Tip: Use keys 1-4 to answer quickly
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Explication : H2O means 2 hydrogen atoms and 1 oxygen atom.
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Explication : Air contains about 78% nitrogen and 21% oxygen.
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Explication : Humans have 23 pairs of chromosomes, or 46 in total. Gametes (sperm and eggs) only have 23.
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Explication : Alexander Fleming discovered penicillin by accident in 1928 when he observed that a mold was killing bacteria in a forgotten Petri dish, opening the era of antibiotics and saving millions of lives.
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Explication : Sodium chloride (NaCl) is composed of one sodium atom (Na) and one chlorine atom (Cl). Salt was so precious in ancient times that Roman soldiers were sometimes paid in salt, hence the word "salary" (from Latin salarium).
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