Horrible Science Really Rotten Experiments Update Now Change up the marble run

Change up the marble run experience from racing to bouncing with the Trampoline

flicking its tongue on the hunt for its next meal

Great for inspiring creative expression and exploring color

- For puzzles from the Star Line series

Horrible Science Really Rotten Experiments Update Now Change up the marble run10 fiendishly rotten experiments! Hide cockroach in soap, mould a fake poo and make your own vile vomit and ghastly green slime! Contents: The set comes with plastic stomach, vinegar, funnel, bicarbonate of soda, goggles, plaster of Paris, poo mould, paints and paintbrush, green food colouring, fart pot, glycerine soap pieces, beaker, microwave tray, soap mould, pipette, plastic cockroach, 36 page Top Secret Lab Notebook. Suitable from 10 yrs+