Free courses
Produced by The Open University, a world leader in open and distance learning, all OpenLearn courses are free to study. We offer nearly 1000 free courses across 9 different subject areas. Our courses are available to start right away.
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level 1: introductory icon
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Science, Maths & Technology
An introduction to exoplanets
This free course, An introduction to exoplanets, introduces our galaxy's population of planets, and some of their many surprises. It explains the methods used by astronomers to study exoplanets, and provides a general introduction to the methods of scientific inquiry. The course culminates in discussion of life elsewhere in our Galaxy.
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level 1: introductory icon
Science, Maths & Technology
Particle physics
This free course, Particle physics, will give you an overview of current concepts and theories in the field. You will learn about the fundamental components of matter – known as leptons and quarks – and the composite particles, such as protons and neutrons, which are composed of quarks. You will see that all particle reactions may be described ...
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level 2: intermediate icon
Science, Maths & Technology
Toys and engineering materials
This free course, Toys and engineering materials, introduces engineering in context. It explores the variation in materials and composite materials, and provides real-life examples of material use in the manufacture of toys, and how the development of materials over time has influenced design.
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level 1: introductory icon
Science, Maths & Technology
The science of nuclear energy
This free course, The science of nuclear energy, will delve into the science behind nuclear power and explain what happens inside a nuclear reactor and what it means for an element to be radioactive. It will explore some of the risks of producing nuclear power and examine the arguments for and against including it in future energy planning as ...
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level 1: introductory icon
Science, Maths & Technology
Introduction to ecosystems
If we don't grasp why ecosystems function, it becomes harder to determine possible reasons for when they don't, and makes it difficult to identify possible environmental threats to humans. In this free course, Introduction to ecosystems, you will discover how organisms are linked together by complex interrelationships, how such links are studied...
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level 3: advanced icon
Science, Maths & Technology
Strategic planning: systems thinking in practice
Strategic planning: systems thinking in practice is a free course introducing core ideas of systems thinking in practice for managing and improving complex situations. The ideas correspond with three core activities of, firstly, understanding inter-relationships, secondly, engaging with multiple perspectives, and thirdly, reflecting on boundary ...
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level 2: intermediate icon
Science, Maths & Technology
An introduction to electronics
Electronics is fundamental to modern life. Using an interactive website, videos, and easy-to-use electronic circuit design and simulation software, this free course, An introduction to electronics, will show how electronic devices and systems pervade everything we do, and teach some of the basic ideas.
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level 1: introductory icon
Science, Maths & Technology
What is a metal?
This free course, What is a metal? explores the main characteristic properties of metals and their varied use in our everyday lives. Each metal has its own personal signature and you will undertake an online experiment to identify individual metals.
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level 2: intermediate icon
Science, Maths & Technology
Transport and sustainability
This free course, Transport and sustainability, explores the issues around sustainable transport and how the role of technology and society can interact to lower the overall impact of transport.
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level 3: advanced icon
Science, Maths & Technology
Working mathematically
This free course, Working mathematically, is aimed at teachers who wish to review how they go about the practice of teaching mathematics, those who are considering becoming mathematics teachers, or those who are studying mathematics courses and would like to understand more about the teaching and learning process.
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level 1: introductory icon
Science, Maths & Technology
What are waves?
This free course, What are waves? explains what waves are. It describes different types of wave as well as their properties. You can listen to the song of a humpback whale and learn about the process of echolocation which is used by dolphins to locate their food. You will also conduct your own online research into how bats use echolocation to ...
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level 2: intermediate icon
Science, Maths & Technology
What chemical compounds might be present in drinking water?
Do you want to know what’s in the water that you drink? This free course, What chemical compounds might be present in drinking water?, examines the chemical compounds that occur in drinking water. A high level of certain anions in water can cause environmental pollution and health problems. Cations are also important. For example, calcium salts ...