John Cassidy

31 books

Zap Science: A Scientific Playground in a Book, Zap Tube, 3-D Glasses, Polarization Filter, Zap Pack, Lift & Sniff Patch With Tube, 3-D Glasses, Filt by Paul Doherty, Pat Murphy, John Cassidy

Zap Science: A Scientific Playground in a Book, Zap Tube, 3-D Glasses, Polarization Filter, Zap Pack, Lift & Sniff Patch With Tube, 3-D Glasses, Filt

Paul Doherty, Pat Murphy, John Cassidy

100 pages • first pub 1997 (editions)

adventurous challenging medium-paced