Big ideas.
Simple words.
We explain complicated things so clearly, a 10-year-old could understand them — and honestly, most adults couldn't explain them any better.
🎲 Random explanations
See all →How to Understand What Characters Are Really Like
Learn how authors show you what their characters are like through their actions, words, thoughts, and how other characters treat them.
What is a dwarf planet?
Dwarf planets are like the forgotten middle siblings of our solar system — too big to be asteroids, but not quite big enough to be proper planets.
Reading and Writing Really Big Numbers Explained
Learn how to read, write and understand enormous numbers using place value, commas, and scientific notation.
How Nerve Cells Talk to Each Other
Nerve cells use chemicals and electricity to send messages to each other, allowing your brain and body to work together.
How to Analyse and Learn from Famous Artists
Discover how to look at famous artwork like a detective, asking questions and learning from the techniques great artists used.
Drawing Human Faces: Getting the Proportions Right
Learn the basic rules artists use to draw faces with correct proportions so they look realistic and balanced.
Why Some Materials Stretch and Others Break
Learn why rubber bounces back while glass shatters, and what happens inside materials when we pull, bend, or twist them.
Water Safety Rules Every Swimmer Should Know
Learn the essential safety rules to follow when swimming to stay safe in water and have fun.
What is radiation?
Radiation sounds terrifying, but sunlight is a form of it — the word just means energy travelling through space.
How it works
Three rules. No exceptions.
No jargon. Ever.
If a word wouldn't make sense to a 10-year-old, it gets swapped out for one that does.
Use real analogies.
Every hard idea gets connected to something you already know — pizza, Minecraft, whatever works.
Keep it honest.
Simple doesn't mean dumbed down. We never sacrifice accuracy — we just refuse to be confusing about it.
Got a question?
There are no stupid questions. If you don't understand something, chances are loads of other people don't either.
Ask us to explain something →Want to be an ELI10 Expert?
Got real expertise? Help us answer the questions the internet makes complicated. Apply to join our team of experts — no jargon, just brilliance made simple.