Science Topic Picker

Science Topic Picker

Science Topic Picker

Today's topic

Tap below for a topic

Edit the topics

One per line — remove any, or add your own. The board chalks a random one each time (built-in topics come with their extra detail).

Tap Chalk a topic — the board lands on a random science topic with its subject and a mind-bending key fact. A random topic to study, revise or teach, across biology, chemistry, physics, earth science and space.

  • 18 topics
  • For class & clubs
  • A fresh topic each time
A random corner of science

The Science Topic Picker chalks a random science topic onto the board — with its subject and a mind-bending key fact. A random topic to study, revise, or hand a class, across biology, chemistry, physics, earth science and space.

Why one topic beats the whole syllabus

A syllabus is a wall of topics; landing on just one — with a startling fact attached — turns it into something you actually remember. Use it as a revision spinner, a lesson starter, or a “go and research the topic you land on” task.

A key fact with every topic

Every built-in topic lands with a fact designed to make someone say “wait, really?” — the hook that makes the topic stick. It's a doorway into the subject, not the whole lesson. Add your own topics in the panel to match your syllabus.

The topics on the board

TopicSubject
DNA and geneticsBiology
EvolutionBiology
PhotosynthesisBiology
The human brainBiology
The periodic tableChemistry
Acids and basesChemistry
States of matterChemistry
Quantum physicsPhysics
RelativityPhysics
GravityPhysics
Plate tectonicsEarth science
Black holesSpace

…plus six more, and any you add yourself — 18 topics in all.

Fair, and free

Each pick is drawn with a cryptographically fair random generator, so every topic has an exactly equal chance. Exploring the wider science shelf? Meet the Element Picker or the Famous Scientist Picker.

Frequently asked questions

Eighteen topics spanning biology, chemistry, physics, earth science and space — and you can add as many of your own as you like.

Each built-in topic lands with one striking fact to hook your interest. It's a way in, not the whole topic — the rest is yours to explore.

Yes — type them into the panel, one per line, to match your syllabus. They're drawn alongside the built-in ones.

Very — use it as a revision spinner, a lesson starter, or a “research the topic you land on” task for a class.

Biology, chemistry, physics, earth science and space, so there's something for most science courses.

Yes. The board draws with your browser's cryptographically secure random generator, so every topic has an exactly equal chance.

Yes — save the chalked board as a PNG, or tick “Download after each reveal” to grab one automatically.

Completely free, with no sign-up. Draw as many topics as you like, on any device.