Have you heard the fairy tale of Hansel and Gretel?
Remember - they met a witch in a gingerbread house while lost in the forest? But what would a scientist think of that gingerbread house? Well, you are about to find out, because Professor Everafter is here, and he is going to put this fairytale under the microscope.
This is Book 5 in the Once Upon a STEM Series. See all Once Upon a STEM books here.
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