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Textbooks by Subject

Science

 

Anatomy and Physiology of Animals (CC-BY-SA)
AP Environmental Science (CC-BY)
CK-12 Earth Science (CC-BY-SA)
CK-12 Life Science (CC-BY-SA)
Comparing Stars (CC-BY-NC-SA)
Deserts: Geology and Resources (PD)
Earth’s Physical Resources: Petroleum (CC-BY-NC-SA)
Earth Science (CC-BY)
Earth Systems, an Earth Science Course (CC-BY)
Earthquakes (CC-BY-NC-SA)
Empirical Research Design (CC-NC-BY-SA)
Energy Conservation and Environmental Protection* (CC-BY-NC-SA)
Environmental Science in the 21st Century (custom license)
bullet-3 Essentials of Environmental Science by Dorsner (CC-BY-NC)
Evolution through Natural Selection (CC-BY-NC-SA)
Gene Manipulation in Plants (CC-BY-NC-SA)
Genes, Technology and Policy/The Science (CC-BY-SA)
Geology of the National Parks (CC-BY-NC-SA)
Geothermal Energy—Clean Power From the Earth’s Heat (PD)
GIS Commons: An Introductory Textbook on Geographic Information Systems (CC-BY-SA)
Interactive Science Simulations (CC-BY)
Internet for Environment (CC-BY-NC)
Introduction to Climate Dynamics and Climate Modelling (CC-BY-SA)
bullet-3 Introduction to Ocean Science by Segar (CC-BY-NC-ND) 
An Introduction to Sustainable Energy (CC-BY-NC-SA)
bullet-3 Introduction to Tropical Meteorology by Laing and Evans (ACARR) Free registration required
Intro to Physical Oceanography (Custom Copyright)
Life in the Palaeozoic (CC-BY-SA)
Nanotechnology (Custom license)
Nature of Geographic Information (CC-BY-NC-SA)
The Opensource Handbook of Nanoscience and Nanotechnology (CC-BY-SA)
Our Ocean Planet – Environmental Geoscience in the 21st Century (custom license)
  Outline of American Geography (PD)
Own You Own Space (CC-BY-NC-ND)
Physical Geography (CC)
Plate Tectonics (CC-BY-NC-SA)
Radioactivity iLab Curricula (CC-BY-SA)
  Science Appreciation: Introduction to Science Literacy (custom license)
The Science of Healthy Behaviors1 (PD)
Sustainability: A Comprehensive Foundation (CC-BY) BoundCopy
This Dynamic Earth: The Story of Plate Tectonics1 (PD)

 

Disclaimer: College Open Textbook has not yet vetted all of the open textbooks on this list for quality or accuracy of the content. However, peer reviews, as indicated by an asterisk (*) next to the book title, are available at The Reviews: Science.
Accessibility reviews, as indicated by the number 1 next to the book title, are available at Accessibility reviews.
License Attributes: ACARR=Affordable Copyright All Rights Reserved.  BY=Open w/ Attribution.  CC=Creative Commons license.  GFDL=GNU Free Documentation License.  GGPL=GNU General Public License.  NC=Non-Commercial.  ND=No Derivative Works.  PD=Public Domain.  SA=Share Alike.