Middle school
The middle-school program lays the foundations of chemistry: matter, atoms, molecules, transformations. Five chapters to understand that everything — from air to your pen — is made of the same elementary building blocks. The last chapter bridges to high school: you meet the amount of substance and the periodic classification for the first time.
- Chapter 01
Matter and measurement
Recognizing matter, its physical states, its mixtures. Measuring mass, volume, density, mass concentration — the chemist's first quantitative tools.
1/4 lessons published - Chapter 02
Atoms and molecules
From the simplified atomic model to molecules: matter is made of organized grains. Chemical symbols and first formulas.
1/3 lessons published - Chapter 03
Chemical transformations
Identifying a chemical reaction, writing its equation, balancing. Mass conservation as the central principle.
1/4 lessons published - Chapter 04
Electricity and chemistry
Why do some solutions conduct electricity? Discover ions, their charge, and their motion.
0/2 lessons published - Chapter 05n+1 bridge
Toward high school
Bridge chapter: a first encounter with two central high-school notions — amount of substance and the periodic classification.
0/2 lessons published