I dont know if I shared that I am a science teacher. I teach science grades 1 to 6. I love it...I mean LOVE it. I love sharing the need to question everything. Today we shook up soda and then opened it and watched it go everywhere. Kids LOVE this. I urge you to do it. Take your kids outside (or borrow some kids) get some cans or bottles of diet (less sticky) coke and go for it! So much fun. Oh and heres a tip. Get a bottle of soda, shake it up, open it....ooh...ahhhh. Ok now pour out a little bit, put the lid on and shake it again....now you will really get an explosion! Enjoy!