Free online courses in science are offered by real schools. Learn which science courses are available, what topics they cover and which ones lead to real college credit. Schools with free online science classes, such as though offered through OpenCourseWare programs, do not generally require students to register in order to gain access to course materials, but they also do not award college credit for completion.

1. Education Portal
Education Portal offers an affordable alternative to students who'd like to work their way toward real academic credit via online courses covering microbiology, anatomy and physiology, basic genetics and more. All classes include free lesson transcripts and are taught by experienced instructors who use a teaching style that makes the material approachable. Registered members who pay a small fee can also access short video lessons and self-assessment quizzes. Some of the courses offered include:
Science 101: Intro to Natural Sciences - Lessons cover an array of subjects, including human anatomy, basic mechanics, ecology and thermodynamics.
Biology 102: Basic Genetics - Instructors discuss RNA and DNA replication, gene transmission and causes of genetic mutation. They also introduce topics of concern in human genetics research and comparative genomics.
Chemistry 101: General Chemistry - Lessons introduce students to the periodic table, atomic structure, chemical bonds, stoichiometry and nuclear chemistry.
Geology 101: Physical Geology - Forces shaping the Earth's surface and its features are covered alongside rock types, soil structure and atmospheric science.
Environmental Science 101: Environment and Humanity - Lessons explain the interactions occurring among an ecosystem's organisms and the environmental impact of humans' resource consumption.
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