A stunning volcano to be personalized to create incredible fluorescent breakouts in the dark! The toy contains: plaster and shape to create the volcano, temperature colors to color it, bicarbonate, UV torch and a neon pigment to create surprising breakouts! One of the most famous scientific experiments is even more fun thanks to the luminescent effect of the "lava" of the volcano! The scientific instruction manual guides the child through the various experiments which are carried out safely. A toy intended to bring children closer to the scientific world in a simple and fun way.