The formula H₂O shows that water is made from two atoms of hydrogen (H) bonded to one atom of oxygen (O). Katie: Time for some science. And today it's a chemistry classic, the periodic table. And here ...

Sodium benzoate is used as a preservative to prevent food from molding. It's added to a wide variety of foods, including mayonnaise, margarine, carbonated drinks, jams and jellies, sauces, and tomato ...