This guide links to Open Educational Resources and other free (or already-paid-for) materials that support GRC science curricula. These include videos, animations, textbooks, etc.
Browse by subject for Open Access, Holman Library, and free online resources in biology, chemistry, physics, astronomy, and anatomy & physiology.
This guide was last updated in December 2025. Please contact librarian@greenriver.edu if you encounter any accessibility issues or have questions.
Please note that while we update this guide periodically, it does not represent all the open access, free of cost, and low cost resources on the subject. If you can't find what you are looking for or would like to consult with the library on additional resources, please reach out to librarians Amanda Chin and Sue Schub, our OER librarians, and/or Jody Segal, your division liaison with Holman Library.