Experiments (with tag Warning: Heat - show all)
![Test tubes filled with different coloured liquids Test tubes filled with different coloured liquids](http://smallscience.club/site/assets/files/1040/universal-indicator.200x158.jpg)
Homemade Universal Indicator
Colourfully detect the pH of stuff with red cabbage juice!
Different stuff around us (and in us!) tends to be acidic, neutral or basic. In this spectacular colour-changing experiment we test a few liquids for their pH.