this is a fun way to introduce chemistry students to the subject of pH.

Step 1: setting up

each student sets up a square field of centrifuge tubes.
I would recommend a 5x5 field because filling 25 tubes is a reasonable task.

What a fantastic idea! I am going to share this with our science teacher!
Great idea.
Oh, I am *so* going to steal this idea! <br> <br>
(Although I think I'll use spotting tiles as the playing boards)
yeah that would also be a nice! <br> <br>but this way you can make them practice with an pipet as well <br>
True, but I was thinking of doing it with pupils aged 12-13, when they are first learning about acid vs alkali.

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