Add 1 drop of lemon juice to the cup labeled Acid and gently swirl to mix. The liquid turns a cranberry red color. This color change tells you that lemon juice has an acid in it. 7. Now, use the tip ...

Open a corner of the plastic bag and carefully pour the liquid into an empty, clear plastic cup, leaving the cabbage pieces behind in the bag. The liquid is your indicator solution. Explain to ...

In this article: Starbucks Reusable Color-Changing Plastic Hot Cups, Starbucks Limited-Edition Color Changing Candy Cane ...