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Hi, everyone!
As you may know, children tend to have unquenchable curiosity and imaginative minds as they navigate the world. While they may be more eager than any other teen or adult to learn something new, they are susceptible to coming up with some of the strangest ideas and misconceptions. That being said, what were some weird scientific misconceptions you had when you were younger?
This is just a fun thread you can answer to if you like. :)

Here are some weird misconceptions I have had when I was younger:
1 I was around 6-8 years old when this happened: my dad was carrying me to my room so that I could take a nap, and apparently, he forgot to shave, so I could feel some of his hairs against my skin. I was so infuriated with my dad at the time, because my legs started getting itchy because of the way his hairs scratched at them. When I was settled in bed, I started bending down to scratch my legs, only to realize that they had hairs on them! It was that one moment that caused me to notice I had bodily hairs! At the time, I did not know that it was natural for any human being to have and grow bodily hairs, so for several months I blamed my dad for giving me hairs.
2. I believed that belly button lint was cinnamon; my sister also believed this as well. I never tried to eat it or anything, but for one or two years, we both kept referring to it as "cinnamon."
3. I thought that pretty much anything with a face or some inspiration from a certain character had feelings. This included toys and, strangely, bath towels. There was this one time when my sister and I were each given a Princess hooded bath towel and a Minnie Mouse hooded bath towel. My sister acted pretty normal about the towels, but I thought the towels were each connected to Sleeping Beauty and Minnie Mouse and that they would be watching whenever I used the towels. Hence, I stayed up late having this entire dilemma about which bath towel I should use more. I thought that if I wore the Princess towel, I would become friends with Sleeping Beauty... but at the cost of hurting Minnie Mouse's feelings. Likewise, I thought that if I wore the Minnie Mouse towel, I would become friends with Minnie Mouse... but at the cost of hurting Sleeping Beauty's feelings. Yeah, I was pretty weird.
4. There was this one time when my dad scooped a dead bunny from our swimming pool and laid it near our garden. Of course, like any other little kid, I felt heartbroken at the site of the dead rabbit, so I was determined to bring it back to life. I tore a cabbage leaf from our garden and put it in front of the dead bunny; I thought that by doing this, the bunny would wake up, eat the cabbage, and run off. Coincidentally, both the bunny and the cabbage leaf were gone the next day, so I genuinely believed that the bunny was resurrected back to life!
5. When I was in fifth grade, my teacher handed out these worksheets about the floating egg experiment. The worksheet required students to hypothesize whether they believed the water or the egg changed in density to cause the egg to float. Of course, I believed the egg changed in density, because I thought the salt dried out the egg and therefore made less dense and more lightweight, enabling it to float.
6. One time when we were younger, my sister and I were debating whether skirts or wings were better. Being obsessed with Disney princesses, I of course chose skirts while my sister chose wings. I remember sighing delightedly at the thought skirts while shouting the word "BOOO" at the thought of wings! Anyways, I knew my sister had a point in defending wings: you can fly with them. However, I was determined to bring skirts to justice once and for all! In my head, I imagined the grace and beauty of a woman with a skirt... and the grace and beauty in which it would make her FLY! I thought that if the wind billowed at her skirt, it would become like a parachute and then she would FLY! I don't remember if I said this stuff to my sister, but I do remember believing it in my head.
7. I thought that if you stayed near a shower or bathtub's drain for too long, you would get sucked in it and drown.
8. I thought the ocean was salty because of the fish pee.
9. I thought that women became pregnant by kissing their husbands specifically during the wedding day.
10. I remember watching Frozen when I was younger and became awe-struck when Elsa used her snow powers to create that sparkling blue dress and cape... I honestly thought it was scientifically possible for her to be able to use snow powers to make a dress, and it never struck my mind how she was able to do it in the first place.

That was fun Lucy. The only thing I can think of right now is that when I started to get a moustache (as a girl), I wondered if there was something wrong with me, or if I was supposed to be a boy.

I was really young, maybe 3, when one of Mom's girl friends demonstrated condensation to me by holding a cup with cold water over a boiling pot of water. I was sure she'd poked holes in it somehow. I just didn't get it. It bothered me terribly & I bugged my parents about it until Mom was ready to bust. I just couldn't understand it until my father repeated it with different water temperatures & it finally clicked. I still remember the frustration & that was over 60 years ago.

What a wonderful thread! Sorry that I only noticed it now. One time when I was about 12 I made a toy catapult. I was convinced that the stone would come out faster and fly farther if I taped a little piece of tissue paper over the bucket. My reasoning was that the stone would have to "push harder" to break through the tissue paper, and then when the paper broke it would go that much faster, like what happens if you push on a door and it suddenly gives way unexpectedly.
My experiments showed that my theory was terribly wrong -- the stone never broke through the tissue paper at all. I think that my mistake was anthropomorphizing the stone, giving it human feelings and the ability to "push harder." The same misconception as Lucy's #3. I wonder if this is a misconception that all kids have, in some form or other.

When we were kids, sex education pretty much consisted of film strips showing diagram and mitosis and meiosis and such, with the chromosomes arranging themselves and doing their thing. So what we came away with was, you don't want to do anything with a boy where you might get your chromosomes mixed up. My firiend knew a girl who had gotten pregnant, somehow they had fooled around and got their chromosomes mixed up. We had no idea how "it" was done, only that we lived in horror of goofing up and doing it!

Nancy wrote: "When we were kids, sex education pretty much consisted of film strips..."

I grew up on a farm so I saw various animals screwing fairly often. I was horrified when I made the connection to how I came to be. I was quite young, not yet 5 I think since we moved then & I was playing in the sand pile at the old place when the revelation hit me.

I remember a few flashes & I'm not sure how close together the incidents were. One of drakes had just gotten knocked off a hen he was raping & his weird, long spiraling penis was trailing behind him. My dog locked with another. Then my father & mother sharing a passionate kiss & it clicked! I got this image of my father like a demented duck/dog on top of Mom. I remember not being able to look at them for a while & them asking me what was wrong. I never did tell them & somehow got over it.

When I was young , I thought babies were made by two ovaries merging and something.. it was a Grand Realization.. it still brings a smile to my face to think of that moment of epiphany ..