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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Science, Maths & Technology
Mathematics for science and technology
Maths is intimately entwined with science and technology, whether it is used to analyse data collected on plants in the Amazon rainforest, to calculate the trajectory of a comet or design a bridge to connect two countries. This means that science and technology go hand-in-hand with maths, and that a firm grasp of maths is crucial for studying ...
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Nature & Environment
Studying mammals: A winning design
The term mammal encompasses a huge variety of animals, including humans. But what makes a mammal a mammal? This free course, Studying mammals: A winning design, explores some of the features, such as reproduction, lactation and thermoregulation methods, that mammals have in common. It is the first in a series of ten Studying mammals courses....
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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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Science, Maths & Technology
Vaccination
Vaccinations are now considered a part of everyday life, but how do they work? Vaccination is a free course that will help those with a background in biology understand the historical development of vaccination, assess the various types of vaccines used today, examine their production and explore the limitations that are placed on vaccination ...
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Science, Maths & Technology
Microgravity: living on the International Space Station
This free badged open course, Microgravity: living on the International Space Station, will help you to consider microgravity environments in more detail than before! You will make direct comparisons of some important physical values between the International Space Station (ISS), the Earth and the Moon.
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Science, Maths & Technology
Mathemateg bob dydd 2
Bydd y cwrs rhad ac am ddim hwn yn adeiladu ar eich sgiliau mathemateg presennol ac yn eich helpu i deimlo'n fwy hyderus wrth fynd i'r afael â'r fathemateg rydych chi'n dod ar ei draws mewn sefyllfaoedd bob dydd.
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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 ...
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Science, Maths & Technology
Engineering: The challenge of temperature
Engineering is about extending the horizons of society by solving technical problems, ranging from the meeting of basic human needs for food and shelter to the generation of wealth by trade. This free course, Engineering: The challenge of temperature, looks at the impact of changes in temperature on a variety of objects and looks at the problem ...
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Science, Maths & Technology
Design
This free course looks at the process of design, from assessing the complexity of design as an activity to exposing the difficulty in making general conclusions about how designers work. You will be able to identify innovation in a wide variety of designed objects and evaluate the impact of this innovation.
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Science, Maths & Technology
Understanding science: what we cannot know
This free course, Understanding science: what we cannot know, investigates the boundaries of our understanding across numerous scientific fields. It asks whether it's possible that we will one day know everything, or whether some knowledge will always lie beyond the bounds of human comprehension.
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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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Science, Maths & Technology
Basic science: understanding experiments
This free course, Basic science: understanding experiments, introduces you to science-based skills through simple and exciting physics, chemistry and biology experiments.