Potassium nitrate Memes

Chemistry nerds unite! This meme is a brilliant play on the word "cooler" - both as slang for "more awesome" and literally as in "temperature drop." When potassium nitrate (KNO 3 ) dissolves in water, it creates an endothermic reaction, which means it absorbs heat from the surroundings and makes the solution physically colder. So yes, it would literally be cooler if they dissolved the salt! The perfect chemistry pun doesn't exi— oh wait, it does, and it's this one.