STARTER You have three unknown liquids in three bottles and you are given universal indicator. How can you tell which is which in each bottle ?

SCIENCE IS MAGIC

UNIVERSAL INDICATOR IS JUST LIKE TRAFFIC LIGHTS ACIDS TURN RED NEUTRAL TURN GREEN ALKALI TURN BLUE/PURPLE

ACIDS AND ALKALIS USED IN EVERYDAY LIFE CITRUS FRUIT (Oranges) BLEACHES TOOTHPASTE FIZZY DRINKS CAR BATTERIES INDIGESTION TABLETS SWEETS (Refreshers) VINEGAR

EXPERIMENT TO SEE WHAT HOUSEHOLD ITEMS ARE ACID OR ALKALI RESOURCES U.I paper, p.H chart. Test tubes and test tube rack. Water bottle Lemon juice, sherbet, milk, soda water, shampoo

Making your own indicator using red cabbage. Get some red cabbage. Crush up the red cabbage. Boil up the red cabbage in water. Pour the red cabbage water through sieve. Use it to test the substances as before.

Chart of p.H for red cabbage

Rainbow Fizz Test tube 1 Sodium hydrogen carbonate Add Test tube 2 Water Add Test tube 3 Universal indicator Add Test tube 4 Acid and make observations

THE END Now its time to taste some chemistry SWEETS