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H₂O

H₂O is the chemical formula for water. It means that each water molecule is made up of two hydrogen atoms (H) and one oxygen atom (O).

Examples of where to find H₂O:

  • Oceans, lakes, and rivers
  • Rain, snow, and ice
  • The liquids in your body
  • Fruits, vegetables, and other foods

Etymology:

  • H: The symbol “H” stands for the element hydrogen.
  • O: The symbol “O” stands for the element oxygen.
  •  The small “2” next to the “H” means there are two hydrogen atoms in each water molecule.