A self-paced learning notebook
Learn how the world actually works.
Rollo & Freya's learning project. We want to teach kids how the world works from a practical point of view — led by their curiosity, and delivered hands-on, one topic at a time.
Start with the foundations
All topics →
Foundations What is Science?
How science actually works — observation, hypotheses, and what makes a question testable.
10 min beginner
Chemistry Atoms: The Building Blocks
What atoms are made of, how to read an element, and the difference between atomic number and mass number.
14 min beginner
Chemistry The Periodic Table
How the periodic table is organised — periods, groups, metals and non-metals — and how to read a single cell.
13 min beginner