Citric acid and sodium bicarbonate are dissolved in water to give two commonly used solutions in the food industry.
The pH of these solutions is measured and their reaction observed when mixed together.
The level of acid in a range of drinks is then measured. An extension activity is included
Guess the food from the labels
July 17, 2018
Students are given copies of ingredients labels from several common foods, including baked beans, cornflakes, ice cream and naan bread. They are challenged to identify