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It’s a good book except that there’s really not enough explanation for things especially when it comes to chemistry and the periodic table. There’s just not enough explanation and it’s over simplified.
Needs improvement. Answers are within each chapter and it's almost impossible to hide them without ruining the book in some way. We use this for homeschool. It would be nice if all the answers were in the back of the book. Cute idea and makes learning a little more fun.