Online Textbook: www.ck12.org/c/physical-science/
PDF Textbook #1:
https://www.sfponline.org/uploads/FPSStudentEditionEBOOK.pdf
PDF Textbook #2: https://tinyurl.com/y6vmws5v
PDF Textbook #1:
https://www.sfponline.org/uploads/FPSStudentEditionEBOOK.pdf
PDF Textbook #2: https://tinyurl.com/y6vmws5v