Saw your post in Biology too.
For each science, Dot Point has different authors and different formats. The same goes for Creelman past papers.
Dotpoint:
Chem: Fairly good, though imo time is better spent doing past papers. Authors Marilyn and Schell have put lots of effort into making this book, and it shows.
Biology: Quality slightly less than Chem, still worth looking at in the library.
Physics: Poor questions, one-liner answers. Shadwick is lazy and a dumbass, don't buy his books.
Creelman:
Biology: Really good. The questions are arranged in syllabus order. The answers are succinct, detailed, accurate and provides a marking criteria. Highly reccommend you get it.
Chemistry: Fairly good. At least it blows all other past paper books from the water. The questions are arranged by topic, and not by syllabus order, so this might cause a few annoyances. Nonetheless the solutions are pretty good so I would look into it.
Physics: Its okay. Again, the questions here were arranged by topic, not syllabus, so it might cause a few headaches. The answers are a little lacklustre when it comes to extended responses.