الوصف
A bubbling lava eruption. Mix the two kinds of powder and the pigment into the crater of the mould , mix them smoothly. Add clean water, then bubbles will flow out of the crater, just like a volcano eruption.
This is a great science experiment that will amaze your friends and family with a bubbling lava eruption. Content: volcano mould, soda powder, citric acid powder, pigment powder.
