Test the acidity of common substances using the pH paper. Their is, ammonia, baking soda, bleach, coffee, cola, drain cleaner, hand soap, juices, milk, oven cleaner, saliva, shampoo, stomach acid, vinegar, and water. They can be tested by comparing the color of pH strips to a pH scale. Some are going to be in between two numbers, but that's alright. Choose between 19 different substances and click "Test" to find out their acidity. Click "Reset" to reset the whole thing, making you able to change substances again. Enjoy! :)
Credit to: -Rusty Paper (Original Project) -NotTechnobladeReborn (2nd Project)