just chiming in late to say, hmmmmm. I found it was really just a science textbook that hadn’t been written yet. If you cut out all the suggested readings from the resources and glued them into a scrapbook, you would have a typical textbook. Little smatterings of info pieced together. I can’t say I felt like all the resources were living books. Lots of DK, Usbourne… anyways. We often added our own reading. The lab book blanks that they supply are great though and give you a range of styles to match where your child’s writing and recording level is at. That was a good thing and we still use that style of recording in our notebooks and sketchbooks. Just felt like the readings were not enough. Had the level one bio and physics to do with my children.