High schools typically give students textbooks that they use throughout the year before turning in those books at the end of the school year. When a student does not have access to that book and needs information for an upcoming class, that student can find a ninth grade biology book or any other textbook online at such sites as Class Zone and AbeBooks, among others.
Class Zone gives students an easy way to find the textbooks they use in biology class. Students choose the subject and grade level, select the state or area where they live and hit the "Go" button. The website then shows them a list of books used in that area and in that topic. After choosing the correct book, students can read the textbook online or download a copy of the book. Class Zone also provides other resources for students, including sample quizzes and lesson plans.
AbeBooks offers another option for high school students. This website rents textbooks to students for a semester or a school year. Students search the system with the author, title or ISBN of the book, and the website shows them the available books that match their criteria. Upon the book's rental, the company delivers it to the home address on file.