This will link you to carolinascienceonline.org . I can't post the login and password due to copyright rules, but the students know them (Login hint: high school, Password hint: We are #1) I don't use this site much for two reasons. 1) This site is notoriously slow to load. 2) Middle schoolers are not permitted to take their Chromenbooks home. However, the entire book is availiable on this site. If your student has a zero for an extend your knolwedge assignment and for some reason or other has "lost" the readings, you can find them here. An additional benefit of this site is that a student can utilize text to speech features to assist in reading.