This is so brief it's almost harder to review than a book for an older audience would be. With little to judge, we just have a few snappy sentences, leading to the sensible warning to stay in when there's a heatwave, and some very suitable photos. This really is the basics – a 'my first bad weather' book, although as it's in a set of six it might not literally end up as your first. I normally prefer such sets to be one book and not multiple, costly titles, but this is for the tenderest of wrists, so I'll let it pass.
This is a short, sweet to the point book about heat waves for the budding scientist in your family. It tells about the effects of heat waves, what to do in a heat wave and how to stay safe in a heat wave. There is a nice glossary in the end of the book. I recommend this book for the school library.