Any "interesting experiments" happen in your Chem class?

we convinced our teacher to put alot of pure Na in water and blew up and a chunk landed in a kids hair and burnt part of his hair

our chem lab has really old and decrepid sinks with misc. chemicals dried up in them.  One day my friend and I put a penny in one and dumped some chemical on it (I don't even remember what it was) and it reacted with something in the sink and made all this green foam and melted the penny partially

in gr 9. science our teacher did the classic experiment of putting pure sodium into water. For those who don't know what it does, it basically sizzles and is on fire.

We convinced our teacher to put more then the first time, and the beaker exploded, the ceiling briefly lit on fire, and the fire alarm went off. yay.

our teachers pretty sweet, for referance, he picks up road kill and keeps it in his freezer in the classroom. he's got some crazy shit in that freezer.

so we told him to find something new to do for an experiment this year and so he did one he hadnt done before. He put pure calcium in a bucket of water, he put 2 pieces of calcium that were about teh size of a quarter each and let them float around. he had no idea what it was gonna do so we backed up. after about 10 seconds of just fizzing in the water he let us all come closer. as we were all peering over the bucket of water he poked it with a pencil. bad idea. It exploded in one of the craziest bangs i've ever heard. comparable to a big ass cherry bomb exploding in your face. water everywhere, the whole class was temporarily deaf and there were smoldering pieces of calcium all over his desk burning holes into it. crazy shit that i didnt expect.

not super interesting but i found funny, he boiled ethanol on a hotplate and put his hand in it to show how low the boiling point is and for some reason the ethanol got too hot and caught on fire engulfing his arm in flames. he smacked as his long sleeve for a few seconds and it went out but it was pretty cool.

not related to chem but one summer a janitor disconected his freezer to clean behind it and didnt plug it back in so when everyone got back to school the whole school reeked like roadkill and there was dead animal juice all in his class. awesome.

We did the alkali metals in water thing and my teacher put in way too much and he blew up the beaker and the flame shot onto the cieling and lit it on fire for a couple seconds. It made a rediculous amount of smoke and made everyone cough, so while everyone is stilll laughing and coughing the principal comes in and sees everything and just turns around and walks out.

Another time we were boiling draino for some reason and we decided to put a bunch of food into the draino. We put some chocolate in and the entire thing starts to fizz and leaks all over the flame and makes achitload of smoke, and then the glass breaks and spills this boiling draino and chocolate mixture all over the table.

we were building things using vcr motors and the one i built was a 3 lb disk weight spinning on the motor kinda like one of those buffers they use on cars and shit. it was a pretty big motor compared to most of the rest, i was holding it like "holy shit this thing is spinning fucking fast" and as i say that i hear a loud bang, the disk snapped off and flew straight into my face, almost knocked me over. totally got lucky and it didnt fuck up my teeth but they hurt so bad and it punched a one inch slit that went through my skin into my mouth, had to go to the hospital. now im scared of spinning shit.

my classmates were convinced that our teacher was in the mob... anyways all he did was teach us different ways on how to make bombs, oh, and stoichiometry

my teacher had this thing he called "the flaming bubbles of death" basically he took a funnel and hooked it up to one of the hoses that comes from the propane valves for the bunsen burners and put water and soap in it so it made propane bubbles and lit them on fire, needless to say bad idea there was a big flame and his sleeve caught on fire, i dont even remember what he was trying to explain with this he was a new teacher and liked dicking around

thats rough, heres a pinwheel to make you feel better

HAHAHAHA

^hahaha


in my chem class a kid took a thermometer and heated it on a hot plate, then dipped it in ice water... it blew up making a huge crack / bang sound. when the teacher came over he just said that he dropped it, and the teacher believed him.

same kid rolled a j out of the excess rose leaves we were using, then smoked it.

hahahahahahahaa nice

i don't know how they did it, but back when i was in grade 10 some seniors mixed some chemicals together and it exploded and turned some dudes forearm purple for about 2 weeks. i have been trying to recreate it ever since, and unfortunately i am now going into my senior year with no advancements.

When we were doing precipitates I liked to mix random shit together to see what would happen. Our teacher told us to 'gently heat' them over the bunsen. my gentle heating involved boiling, at which point they tend to explode out of the test tube a bit like a cannon hahaha some of the shit that I made didn't come off the window, it was still there on the window when I finished school.

We were using hexonoic acid or something like that. its flammable anyway. we were tipping it down the sink after using it, so I dropped a match into the sink.. big fireball comes out and hits the roof then the sink has a little mini fire burning in it. The teacher just about shit his pants and I didn't get in trouble.