Gross Science, the totally awesome kit that will take you on a voyage of discovery of just how disgusting the human body can be. You can perform 12 horrid, yucky activities that will teach you about such things as; How farts brew and see a burp in action, make loads of snot and watch it flow uphill and lots more! Whilst at the same time having loads and gooey, sticky, gross-out fun. Are you ready? Be warned, it could get pretty GROSS!