Experiment 1: Composition

Required: black paper, toothpick, glass rod, magnifying glass or binocular, sugar, wine acid, sodiumghydrogencarbonate (baking soda), sherbet powder, 3 watch glasses

Give a small amount of sherbet powder on the paper and separate the components using a toothpick. Then look at them through a binocular.

Can You describe differences?

Now compare the binocular view with the given substances sugar (saccharose), sodiumhydrogencarbonate and wine acid.

Are they similar? – Who ´s who?

Take a glass rod, add one drop of water to make it wet and hold it into one of the components of your powder. Then compare the taste with the given pure substances.
Clean the glass rod after each test!

Can you identify the components by taste?

Experiment 2: Fizzy Effect

Required: 3 beaker (100 [ml]), spatula, glass rod, wine or citric acid, sugar, sodiumhydrogen-carbonate

When dry the mixture is not reactive but as soon as there´s contact with water the sparkling effect can be observed. The target of this experiment is to find out which components are responsible for that fizzy effect.
Fill into each beaker 40 – 50 [ml] of tap water. Add each 1 spatula of the two substances sugar / acid or sugar / sodiumhydrogencarbonate or acid / sodiumhydrogencarbonate

Which combination shows effervescence?
Who ´s responsible for the fizzy effect?

Experiment 3: Sweetest Sweetener

Required: 3 beakers ( 50 or 100 [ml]), measuring cylinder ( 10 [ml]), weigh, spatula, saccharose, fructose, non-nutritive-sweetener (NNS) (l) or (s), glass rod

Fill 10 [ml] of tap water into each beaker. Add to one beaker 1 [g] saccharose and stir to dissolve the sugar. To another beaker add 1 [g] of fructose and to the third one one tablet of NNS or 50 [mg].

What sequence of sweetness do you obtain?