I used to believe that ice cubes were only cold because they were left in the freezer all the time. If you left them out they would simply become "warm ice." I was so insistent about this that one day my grandmother got fed up and told me we were going to do an experiment. (This is when I learned what "experiment" means.) She left some ice cubes on a plate by my bed and told me to check them in the morning. Of course when I woke up the plate was full of water, but I wasn't fooled: I was sure my grandmother had come in when I was asleep, taken the "warm ice" away, and filled the plate with water. It never occurred to me to wonder why my grandmother would be so concerned with hiding the truth about ice from me.
A childhood belief about chemistry

others believed things like this
- i used to think a small man named homer lived in my grandmother's freezer and made ice. — ana
- When I was 4 i always believed that the brocolli would jumpoff the plate and eat me and today im still scared— Katrina S.
- I used to think that Luke-Warm water had somthing to do with Luke SkywalkerAnon
- Grandmother told me if I whistled in the bathroom the devil would come get me because I was whistling for him.— Peanut @ Lake Tawakoni Tx
- My Grandmother once told me she could unscrew her feet. I believed that for years.— Andy Bettison
- i used to think poo was a worm in me that ate leftovers that my tummy didnt want, that was full and left.— vanessa