Leo, Alice and the missing particles – Episode 2

Photon has just welcomed Leo and Alice in one of the largest physics laboratories in the world: CERN in Geneva, Swiss. At CERN, scientists from all over the countries work together to find amazing discoveries on the extraordinary small world of the particles. How is their adventure going on?

Help Leo and Alice with puzzles along the story to let them go on with their adventure.

(c) INFN Kids 2025

You can also download the black&white version to have fun with the imagination and draw your personal idea of characters and particles.

Have you missed the first episode? Do not worry: here you can find it. And to switch language, here you can find the Italian version.