21th advent door

Welcome to the advent calendar of LernLaborFarbe. Every day for the next 24 days you will find a little video about color and light.

Today: 21. Adventstürchen (external link)

Today it will be colorful again. In the ammonia fountain, we exploit the solubility of ammonia in water to create a fountain and at the same time perform a protolysis reaction that causes our color indicator to turn. Have fun!

You can also find the doors on our Instagram- or Facebooksite.