Middle school0/2 lessons publishedn+1 bridge
Toward high school
Bridge chapter: a first encounter with two central high-school notions — amount of substance and the periodic classification.
- Lesson 018 minComing soon
Introduction to amount of substance
Why chemists count in packs: intuition of the mole without full formalism. Link to molar mass.
- Lesson 029 minComing soon
First look at the periodic classification
Reading the table, spotting families (alkali metals, halogens, noble gases). Why some elements share properties.