The Huge Slime in the world

There was a boy name William. He like to make a huge thing at the school. One day Miss. Maria tell him to make a slime for science but he put to much powder in it . when he finished he made a giant one but he fitted in a little jar. And then he accidentally drop it the slime dripped through the science room and out the door to the whole city it gets bigger every minutes !! William tried to fit the slime in but he have to travel through the whole city finally he made it and save the whole city