Colour changing paper

purple cabbage science

Even after the delicious pasta and acids and bases experiment, I still have leftover purple cabbage juice. I don’t want to waste it so, what can we do?

I remember my friend Edie’s tie-dye party… we made t-shirts and pillowcases. It was so fun! I wonder if I could make something like that! It would be soo cool to make a birthday card like that! So I quickly got to work.

What did I do?

I took 1 sheet of plain white paper and cut it into 4 pieces. Then I filled a big flat bowl with the purple cabbage juice. I soaked the pieces of paper in the juice and left it for a few days.

2 days later, the paper looked a bit purplish. I left it for one more day (to be sure) and then took it out. Make sure it is soggy before doing this. This means the paper has absorbed the purple cabbage juice. I then dried it on the clothesline and put a few pegs to make sure it doesn’t fly away. When it is completely dry, it was ready to be used.

paper science

With this paper, I am going to put small drops of lemon juice and baking powder solution to make a beautiful mosaic card! And I have a few pieces to give to my friends! Maybe I will make some more to do as birthday cards. What does your imagination say?

The science behind this is also based on the changes that any acid or base will bring to an indicator. Here is a link to the details of the mystery

All those sciency cabbages!!!

If you like these simple explorations that I do, write to me in comments. If you have ideas you want me to try out, write that too. I love to hear from you.

 

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Herin

Good one dear A. We are going to do this soon.