Make Your Own Secret Ink!

The video celebrates National Coloring Day by introducing a fun project to make invisible ink using baking soda, water, and grape juice. The process involves writing a secret message with the baking soda mixture and revealing it with grape juice. The video explains the chemical reaction between the base (baking soda) and the indicator (anthocyanin in grape juice) that causes the message to appear. It highlights the scientific principles behind the experiment and discusses the use of bases and indicators in scientific labs.

What special day is being celebrated in the video?

• National Science Day

• National Coloring Day

• National Baking Day

• National Art Day

What is the first step in making invisible ink?

• Writing a message with grape juice

• Mixing baking soda and water

• Mixing grape juice and water

• Heating the paper

What is used to reveal the secret message written with invisible ink?

• Lemon juice

• Vinegar

• Milk

• Purple grape juice

What type of chemical is baking soda classified as?

• A base

• A salt

• A metal

• An acid

What is the role of anthocyanin in the grape juice?

• It acts as a solvent

• It acts as a base

• It acts as an acid

• It acts as an indicator