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 is an anthocyanin and how does it relate to the experiment?

How does the grape juice change when it comes into contact with a base?