Has this ever happened to you? You’ve drawn a nice, colorful picture with felt-tip pens, and then the picture accidentally gets wet. The paper curls and the colors suddenly run. Strange – now you can see completely different colors. Where did they come from? Are there other colors hidden in the felt-tip pens?
Secret of colors
![color cards](https://www.henkel-forscherwelt.de/resource/image/1157570/21x9/3000/1286/b15ea2ae7c3bb68702b799cf6ca4a090/294E28C81CC6B61B49DB8A9DA76DDE9B/shutterstock-28396351.webp)
You will need
- Coffee filter
- Scissor
- Felt tip pens
- Two small bowls
- Water
Let’s get started!