For the Secondary 3 Apprentice

Electron: What we know and can never know

The electron is the first subatomic particle to be discovered, turning chemistry on its head more than a century ago.

What are cation and anion?

Have your eye on ion

Dot and cross & other bonding diagrams

The art of chemistry: drawing dot-and-cross diagrams and more

Metallic bonding & giant metallic structure

Single ladies put your hands up! We’re paying homage to the metals that don’t need no one else to be stable, chemically of…

For the Secondary 4 Experts

5 ways to increase reaction speed

Speed read the five factors that influence reaction speed

Enthalpy change of reactions

Exo is hot, endo-ure the cold

Test for ions in qualitative analysis

The definitive guide to qualitative analysis

Electrolysis guidebook

Terms used in electrolysis and their meanings

Our commitment to access

We are a group of young science teachers based in Singapore.

We believe in freebies access. Educational resources should be accessible to all, both financially and conceptually. So we are committed to keeping everything on the website free. Let there be no paywall, subscription fee, or DLC. We also use plain language and memes analogies familiar to the young in Singapore.

We believe in diversity. We respect that every child has a unique learning style. That’s why we have multiple authors to write about Chemistry from different angles, with different voices. We hope you can find articles that speak to you, that enrich your learning.

Surely, our notes will help you overcome the O Level Chemistry exams. But life is more than that, and Chemistry too. We will show you the exciting aspect of Chemistry through our stories on everyday applications, folk knowledge, history of science, philosophy, and the latest scientific breakthrough.