Robert Friedhoffer

Robert Friedhoffer has written at least 11 books. Their most popular book is How to Haunt a House for Halloween with 0 saves with an average rating of -⭐.

How to Haunt a House for Halloween

Science lab in a supermarket

Molecules and heat

Magic and perception

Light

Magic Tricks, Science Facts

Matter and energy

Sound

Physics lab in the home

Physics lab in a housewares store

Forces, motion, and energy

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