Kitchen Indicator – Acid and Base test from Chemistry Kit for Kids

KITCHEN INDICATOR is a fun experiment  from the Kitchen Chemistry Kit for kids where they make Red Cabbage Juice Indicator and test various liquids if they are acids, bases or neutral.

Let’s learn what is so special about this pigment and what happens to it when in contact with the different types of liquids!

Safety First! Adult Supervision Required. Wear safety goggles where ever required

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Materials and tools required for the Experiment

Materials In the Kitchen Chemistry Kit

• Transparent bowls
• 400 ml glass
• Measuring cylinder 10 ml
• Red cabbage flakes

Materials from your Kitchen / Home

• Baking powder
• Bleach
• Strainer
• Water container
• Lemon juice
• Vinegar
• Sprite
• Water
• Sugar solution
• Washing powder
• Sanitizer
• Milk
• Lassi
• Vanilla ice-cream
• Tooth-paste
• Buttermilk

Youtube Video for the Experiment

Images & Step by Step for Instructions for Experiment

Step 1: Pour 200 ml water in a glass bowl.

Step 2: Put red cabbage flakes in the water.

Step 3: Switch on the induction cook-top/gas stove.

Step 4: Heat it for 5-7 minutes in medium flame.

Step 5: Filter the entire red cabbage juice using a strainer.

Step 6: Fill the bowls with 70 ml of each liquid

Step 7: Now, start adding 5 ml of red cabbage indicator in each bowl.

Step 8: Arrange them in order of their pH.

Working Principle of Kitchen Indicator :

This experiment is a Part of Kitchem Chemistry Kit for Kids. In this experiment, we make our own indicator to identify the bases, acids and the neutral solutions. Red cabbage has a pigment known as Anthocyanin which is purple in color. When added to a base, the purplish pigment turns green or yellow. Very acidic solutions will turn anthocyanin to a red color. When added to something that is neutral (neither an acid nor a base), the strip will remain of same color (or maybe turn a little blue) and the basic solutions, having pH more than 7, will give a shade of green or blue, when tested with the pH indicator.

Now, try and experiment with more liquids at home like tomato juice, glycerin and more!

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