States of Matter: Solids — three ways to learn it.

The complete written lesson — crystalline vs amorphous solids, the four crystal types, the lattice & unit cell, the seven crystal systems, cubic packing (SC/BCC/FCC), isomorphism, polymorphism, allotropy and lattice energy.

As you scroll, a live D3 panel animates every idea: a vibrating lattice, crystalline vs amorphous order, the carbon allotropes, ions snapping into a lattice, and an interactive cubic unit-cell viewer where you switch between simple, body-centred & face-centred and count the atoms.

Explore crystals and solid properties on a safe, virtual bench. All of the course's hands-on experiments live here, organised by chapter.