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It's the grossest, most revolting science kit out there. Kids can grow their own friendly germs and fuzzy molds, mix up a batch of coagulating fake blood, and even make a stinky intestine. Kids will learn the science behind unmentionable bodily functions while doing some truly NASTY experiments. This kit by Scientific Explorer is a great educational gift for children 8 years old and up.Includes:* 4 petri dishes* Magnifier* Cotton Swabs* Gelatin* Sugar* Baking yeast* Red coloring* Green coloring* Rubber balloon* Small plastic bag* Activity guide