About+the+Competition

The "Life Tastes Good" virtual science quiz deals with the chemical, physical and biological aspects of soft drinks.

= Below is the list of the main topics covered in the quiz: = § **Soft drinks: composition and taste** § **Packaging: composition and recycling** § **Physical properties of soft drinks**

** During the session, you will answer questions and conduct experiments. You** ** will work in 5 teams. ** = You are encouraged to find __information about the quiz topics on your own__ ** and ** ** know or practise the use of weighing ** ** scales ** **. ** =

__ Things to prepare on 14 Feb: __
Prepare the lemon water as follows: weigh 6 g citric acid and put it in the 1.5 liter bottle. Add a liter of tap water, seal the bottle and shake it well until all the powder is dissolved. Fill up to 1.5 liters and transfer to small bottles – one per team. It is   important to prepare all the lemon water in the large bottle and not in the small ones so that its concentration will be the same for all teams. **Instruct your students to calculate the amount of citric acid in 100 ml lemon water** (0.4 g/100 ml). The students will use the graduated cylinder to measure drinkable liquids. Rinse the cylinders well prior to the activity or use graduated measuring cups which have a 100 ml mark.