LOOOOOOOOOL I used a dancefloor as my model hahahahahahahaha gets to crowded people have to sit, gets to hot people sit, and when someones goes to sit someone has to get up to dance hahahahahahaha I was about to write lol at the end of my answer
haha shit
our class used molecular model kits
made the molecules, put them in a box
then picked them up at random
if they were different, they reacted and formed a product
if they were the same, we put them back
if we picked up 2 products, they reacted and went back to the reactants