Make your own acid-base indicator from red cabbage, then test various household substances. Acids and bases are classes of materials that have different properties. Acid-base indicators change color ...

1. Introduce the activity and guide the class in making a red cabbage indicator solution. Tell students that they will use a special color-changing solution, called an indicator, to test two different ...

Make an acid-base indicator. Dr Yan uses some very colourful ... The more concentrated, the more noticeable the colour change. Red cabbage changes colour in the presence of acids and bases because ...

Pour desired household chemicals into separate 50 mL beakers. Add a few drops of universal indicator OR about 25 mL of red cabbage indicator and mix. Compare colors to standard solutions in lighted ...

were made from a combination of nanocellulose and dyes found in vegetables like red cabbage and black carrot. "Color-changing indicators on the package are a way of giving consumers real-time ...