Learning paths
Short guided courses built from our articles. Each lesson takes a few minutes and ends with a quiz, so you can check what stuck.
Learning path · Beginner
A Tour of the Solar System
Start at the Sun and travel outwards, world by world, to the icy edge where comets are born. Eight lessons, from scorching Mercury to frozen Pluto.
8 lessons · 30 min
Learning path · Beginner
Your Body, System by System
Learn how your body is built and kept alive: the skeleton and muscles that move you, the heart, lungs and gut that fuel you, and the brain and senses that run it all.
11 lessons · 43 min
Learning path · Intermediate
From the Big Bang to You
The biggest story there is, in ten steps: how the universe began, how stars forged the elements, how Earth formed, and how chemistry became life.
10 lessons · 39 min
Learning path · Intermediate
How the Universe Works
The laws behind everything: atoms and the elements, light and sound, gravity, electricity and magnetism, energy, and the strange rules of the quantum world.
8 lessons · 31 min
Learning path · Beginner
The Restless Planet
Earth never sits still. Follow the forces that move continents, raise volcanoes, stir the oceans and drive the weather.
7 lessons · 28 min
Learning path · Beginner
The Animal Kingdom
Meet the great groups of animals, from insects to whales, and discover how they hunt, think, sing and cross the planet.
8 lessons · 27 min
Learning path · Intermediate
The Story of Life
Four billion years in eight lessons: the first cells, the code of DNA, evolution, the microbes that run the world, mass extinctions and the webs that link living things.
8 lessons · 30 min
Learning path · Beginner
The Green World
How plants feed the planet, how flowers and seeds spread life, and the hidden kingdom of fungi underneath it all.
6 lessons · 23 min
Learning path · Advanced
Exploring the Cosmos
Beyond the solar system: nebulae, galaxies, black holes, dark matter and the hunt for other worlds, and how spacecraft and telescopes let us see them.
7 lessons · 22 min
Learning path · Beginner
Everyday Chemistry
The chemistry in your kitchen, your body and the world around you: water, reactions, acids and bases, and the molecules of life.
6 lessons · 20 min