Paper that changes colour

[adedwards68]

Does anyone know if you can buy plain sheets of paper that change colour when water is put on them. A bit like the books you get that have a picture to paint using just water and they change colour. I want something that the mindees can actually take home with them rather

[FussyElmo]

Ive not heard of such a thing

[Bumble Beez]

The only thing I can think of that is ever so similar...is that crayola black paper where you use special pens to show the colour?!
Colour explosion?

Sarah x

[SJ35]

The crayola colour wonder paper is white and you can draw on it but it uses a special pen not water. But still no mess as the pen only works on that paper x

[miffy]

Is this the sort of thing you mean?

My First Crayola Mess-Free Marker and Paper Product | crayola.com

Miffy xx

[Glitter]

Litmus paper will change colour when in contact with acids/alkolines.

DIY Lab Equipment: Make Your Own Litmus Paper Using Cabbage Juice « Mad Science

This link shows how to make your own. You could use lemon juice to draw on the litmus paper.