In week 6 we did the House of Science about sweet and sour. . We learnt all about what is acids and bases ( in the slides it will show you what acids and bases are). I found this so much fun because we got to make sherbet.
We made sherbet to find out what would happen if you put acid and bases in your mouth, and it turned out saliva has a reaction to make the sherbet froth up. Making sherbet is very simple all you need is flavoring - (your choice), baking soda, citric acid and icing sugar for a bit of sweetness.
The next day after that we found out what was a base and what was an acid. To tell what was base or acid we used pH paper it would change color depending what substance it was. Then we would measure it with a pH measuring tape whatever color it was on the paper it would show you if it is a base or an acid .If it was higher 7 it is a base and if it was lower than 7 it was an acid. The ingredients were:baking soda,citric acid icing sugar, vinegar and flavoring. The ones that were a base were baking soda and the ones that were acids were citric acid,flavoring icing sugar and vinegar.
In our third experiment was making a pH indicator by using red cabbage.We added hot water which created purple water. Then we put the cabbage water into our test tubes then added all sorts of different subcines to the tubes to see if it changed color. A base is the darker colour and the light colours were an acid. Over all my favorite experiment was the sherbet because we got to eat and we learned something new also the sherbet was really good.
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