Horrible Science Really Rotten Experiments Boys Build an exciting marble racing

Build an exciting marble racing game for up to four players

• 14 seriously sickening kitchen experiments using foul food

Machine washable

rainbow glasses

the nest helps simulate touch

Horrible Science Really Rotten Experiments Boys Build an exciting marble racingFiendishly rotten experiments! Hide a cockroach in soap and mould a fake poo Make your own vile vomit and ghastly green slime! Includes a 36 page lab notebook Contains plastic stomach, funnel, bicarbonate of soda, tartaric acid, goggles, plaster of Paris, poo mould, paints and paintbrush, green food colouring, fart pot, glycerine soap pieces, beaker, microwave tray, soap mould, pipette and plastic cockroach Fiendishly rotten experiments! Mix up vile