Professor Googalfitz explains it all in this fun book featuring a dozen magical science experiments you can do safely at home. He's even thrown in a few brain twisters to get your grey matter in gear and help you on the path to full Professorship!
Professor Googalfitz explains it all in this fun book featuring a dozen magical science experiments you can do safely at home. He's even thrown in a few brain twisters to get your grey matter in gear and help you on the path to full Professorship!