[http://youtu.be/zW638UVnIQY] (YouTube link)What i...  ...A few commenters suggested this is a reaction of calcium carbide and water, which produces acetylene. That would m...  ...which produces acetylene. That would makes these calcium carbide cannons (see how to do that on a slightly smaller...

(YouTube Link) High school science teacher "M...  ...owl. When the Ice melts the water reacts with the calcium carbide (place on the bottom) to produce acetylene gas an...  ...place on the bottom) to produce acetylene gas and calcium hydroxide. The acetylene gas then explodes into f...  ...ts because it keeps...