text: grow some rock candy and describe what makes a crystal grow.\n\nor\ndice some purple cabbage up, and boil it on a low heat.\nyou now have a cheap acid indicator\nput a very small amount into a solution and ad some lemon juice..what happens? does anythign happen when you add soap\n?\nwhy?\n\nor\nmake some ice cream and explain what causes it to freeze\nhttp://www.60secondscience.org/activities/iceCream.html