Fiendishly rotten experiments! Mix up vile vomit in a fake stomach and hide a cockroach in soap. Make ghastly green slime and mould a fake pooch poo. Discover how to make a seriously stinky sandwich, learn about mysterious mirror writing and find out how to make squelchy farts, plus other rotten experiments. Science has never been so horrible! Based on the bestselling books written by Nick Arnold and illustrated by Tony De Saulles. Contains: Galt Horrible Science Really Rotten Experiments Age:6+ Batteries: N/A