Sergei Urban

I love this experiment so much that I have included it in my book. In the book, I share hundreds of curious facts. For example, did you know that there are more trees on planet Earth than stars in our galaxy? I grouped facts into 8 subjects, like art, history, maths, biology and others. Each chapter includes a hands-on activity you can try at home. This colour-changing activity is in the chemistry chapter. Did you know that a long list of food products you have at home can change their colour if you add acid or base to them? Red cabbage creates the best rainbow colour range. But do you remember what happens with tea, when you add a piece of lemon? #TheDadLab #scienceexperiment #kidsactivities #parentsoftiktok