I liked it. It’s split into two halves that don’t seem to have anything to do with one another. Half 1 is a short breeze through major concepts in physics. Half 2 is a list of do-it-yourself physics experiments. Half 1 takes a dozen or so physics concepts like thermodynamics, general relativity, absolute zero, and attempts to distill each to about a page of short, lay explanation. This does not succeed, not through any fault in the writer, but because it is an impossible task. I am well-read in these areas, but trying to read it from a lay perspective, I can see how none of these short walk-throughs add anything to understanding. The author is trying to do what the Michio Kakus, Carl Sagans, Stephen Hawkings, and Guy Murchies have been doing for years: teaching high level physics to laypeople. Perhaps this concept would work better as a Glossary of Physics Terms for reference, not explanation.
Half 2 has some wonderful experiments, for parents and teachers especially. Earlier, I mentioned a direction problem, because things that were explained in Half 1, like General Relativity can’t be demonstrated by household experiment. So there is a sharp disconnect between the two halves. Overall, this is a great reference for teachers & parents attempting to brief children on the subject and inspire them. But in terms of explanatory power, it just doesn’t touch the masters.