We have been making lots of tea in P4! Unfortunately, it was not to drink but to paint with! To make our paper look like it was from the time of the Ancient Egyptians, we painted it with tea and threw a couple of coffee granules on to the wet paper to add some darker spots.

We discussed why the paper changes colour and decided that the tea stains the paper.

What is the name of the chemical in tea that stains the paper?