🔬The color change in the indicator is a result of acid-base reactions.
🌈Different substances create different colors in the indicator.
🥦Red cabbage can be used to create a homemade acid-base indicator.
🎩Perform the magic trick by pouring the indicator into glasses containing acidic or basic substances.
💡Experiment with different substances to observe the different colors they produce in the indicator.
What is an acid?
—An acid is a substance that donates hydrogen ions and increases the concentration of hydronium ions in a solution.
What is a base?
—A base is a substance that accepts hydrogen ions and increases the concentration of hydroxide ions in a solution.
How do indicators work?
—Indicators are substances that change color depending on the pH of a solution. They allow us to visually determine if a substance is acidic, basic, or neutral.
Can I use other vegetables to create an acid-base indicator?
—While red cabbage is commonly used, other vegetables such as beets, blueberries, or blackberries can also be used to create an acid-base indicator.
Can I use other substances for the magic trick?
—Yes, you can use various household substances such as vinegar, baking soda, lemon juice, or even coffee to create different colors in the indicator.
00:00Introduce the 'magic kettle' and its ability to pour different colors.
01:09Explain the science behind the color-changing magic trick involving acids and bases.
06:42Demonstrate how to create a homemade acid-base indicator using red cabbage.
08:50Guide viewers through testing different household substances with the indicator to observe color changes.
10:16Reveal the secret behind the magic trick and explain how to perform it.
