Digestion Whiteboard presentation Play

Dividing natural numbers Student activity Play

Dynamic state of chemical equilibrium Student activity Play

Early attempts to classify chemical elements Student activity Play

Early attempts to classify chemical elements Whiteboard exercise Play

Early attempts to classify chemical elements Whiteboard exercise Play

Early attempts to classify chemical elements (1) Student activity Play

Early attempts to classify chemical elements (2) Student activity Play

Effects of animal husbandry on the natural environment Slideshow Play

Effects of fisheries on the natural environment Slideshow Play

Effects of intensive agriculture on the natural environment Slideshow Play

Eka-aluminium and eka-silicon Whiteboard exercise Play

Electron affinity Animation Play

Electron configuration Student activity Play

Electron configuration and periodic trends of transition elements Whiteboard presentation Play

Electron configuration and periodic trends of transition elements Class activity Play

Electron configuration and the periodic table Whiteboard exercise Play

Electron configuration and the periodic table Whiteboard exercise Play

Electron configuration and the periodic table Student activity Play

Electron configuration and the periodic table (1) Student activity Play

Electron configuration and the periodic table (2) Student activity Play

Electron configuration of an atom Animation Play

Electron configuration of atoms Student activity Play

Electron configuration of atoms Student activity Play

Electron configuration of atoms Whiteboard exercise Play