Okay, this one is for the brave, the bored, or the parent who needs a rainy-day activity. You can make your own pH indicator with red cabbage! It sounds like a science fair project from 1995, but it actually works like magic.
Chop up some red cabbage, boil it in water until the water turns deep purple, then strain out the leaves. You now have “cabbage juice” that acts as a pH superhero. Pour a little into a cup, add a splash of your mystery liquid, and watch the color change. Acid turns it pink; base turns it green or blue. It’s like a mood ring in a cup, and it’s oddly satisfying.
How to Test Your pH Levels - Healthy Lifestyle
Just be warned: your kitchen might smell like steamed vegetables for a while. But hey, that’s a small price to pay for science—and you can always eat the leftovers with butter.
