About pH Scale
Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Visualize the relative number of hydroxide ions and hydronium ions in solution. Switch between logarithmic and linear scales. Investigate whether changing the volume or diluting with water affects the pH. Or you can design your own liquid!
How to play pH Scale
Everything is hands-on: drag, click and experiment — the simulation reacts instantly. Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral.
Questions & answers
- What is pH Scale?
- pH Scale is a free interactive simulation from PhET Interactive Simulations (University of Colorado Boulder) that you can play right in your browser on crumble.lol — no downloads and no sign-up. Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Visualize the relative number of hydroxide ions and hydronium ions in solution.
- What can kids learn from pH Scale?
- It helps kids explore: determine if a liquid is acidic, basic, or neutral place acids or bases in relative order describe on a molecular scale, with illustrations, how the water equilibrium varies with ph determine concentration of hydroxide, hydronium and water at a given ph relate liquid color to ph predict (qualitatively and quantitatively) how dilution and volume will affect the ph and concentration of hydroxide, hydronium and water.
- What age is pH Scale good for?
- It is designed for middle school (roughly ages 10–14) up to university, and curious kids outside that range can absolutely enjoy poking around it too.
- Is pH Scale free to play?
- Yes — pH Scale is completely free on crumble.lol and runs fully in your browser on computers and tablets.