PH. Levels

Yesterday and today in science we are learning about the PH levels. The PH scale goes from 0 to 14. 7 is the neutral number.
Battery acid: 1.0  PH
Lemon juice: 2.4  PH
Coke cola: 2.5  PH
Beer: 4.5  PH
Milk: 6.6  PH
Pure water: 7.0  PH
Seawater: 8.0  PH
Soap: 10  PH
Bleach: 12.3  PH
Caustic soda: 12.7  PH
Vinegar: 3.0 PH
Citric Acid: 2.2 PH
Hydrochloric Acid: 1.0 PH