About Concentration
Watch your solution change color as you mix chemicals with water. Then check molarity with the concentration meter. What are all the ways you can change the concentration of your solution? Switch solutes to compare different chemicals and find out how concentrated you can go before you hit saturation!
How to play Concentration
Everything is hands-on: drag, click and experiment — the simulation reacts instantly. Watch your solution change color as you mix chemicals with water.
Questions & answers
- What is Concentration?
- Concentration 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. Watch your solution change color as you mix chemicals with water. Then check molarity with the concentration meter.
- What can kids learn from Concentration?
- It helps kids explore: describe the relationships between volume and amount of solute to solution concentration. explain how solution color and concentration are related. predict how solution concentration will change for any action (or combination of actions) that adds or removes water, solute, or solution, and explain why. design a procedure for creating a solution of a given concentration. design and justify a procedure for changing a solution from one concentration to another. identify when a solution is saturated and predict how concentration will change for any action or combination of actions where water or solute change.
- What age is Concentration good for?
- It is designed for elementary school (roughly ages 5–10) up to university, and curious kids outside that range can absolutely enjoy poking around it too.
- Is Concentration free to play?
- Yes — Concentration is completely free on crumble.lol and runs fully in your browser on computers and tablets.