Determining the primary structure Animation Play

Dinitrogen pentoxide Simulation Play

Direct evidence for the structure of the inside of the Earth Slideshow Play

Discovering matter Student activity Play

Duralumin Slideshow Play

Early atomic theories Whiteboard exercise Play

Early attempts to classify chemical elements Student activity Play

Early attempts to classify chemical elements Whiteboard exercise Play

Early concepts of the structure of benzene Whiteboard exercise Play

Early concepts of the structure of benzene Student activity Play

Earthing of an insulator Animation Play

Electrical conductivity Animation Play

Electron configuration of elements Whiteboard exercise Play

Electron configuration of elements Student activity Play

Electroscope Student activity Play

Electroscope Whiteboard exercise Play

Elements of Period 3 of the periodic table Whiteboard exercise Play

Elements of Period 3 of the periodic table Student activity Play

Enthalpy changes in the solution process Class activity Play

Enthalpy changes in the solution process Whiteboard presentation Play

Enzymes are proteins Student activity Play

Epidermal tissue – structure Student activity Play

Equilibrium of forces and moments of forces Slideshow Play

Eutrophication of water Student activity Play

Example of giant molecular solid: silicon dioxide Simulation Play