Addition reactions of unsaturated fats Slideshow Play

Additional information contained in chemical equations Student activity Play

Alkylation of benzene by the Friedel–Crafts method Student activity Play

Allotropic forms of crystals Animation Play

Allotropy Student activity Play

Amides and nitriles Student activity Play

Ammonium nitrate Animation Play

Amorphous materials Student activity Play

Amorphous solids Whiteboard exercise Play

Amorphous solids Student activity Play

An experiment Whiteboard exercise Play

An experiment Student activity Play

Angular momentum Class activity Play

Angular momentum Whiteboard presentation Play

Angular momentum of a solid Student activity Play

Angular momentum of a solid Whiteboard exercise Play

Application of catalysts Slideshow Play

Approximation by rectangles Animation Play

Approximation of the volume of the solid revolution Simulation Play

Archimedes' contemplation Animation Play

Archimedes' Experiment Whiteboard exercise Play

Archimedes' Experiment Student activity Play

Autocatalysis Animation Play

Autocatalysis Student activity Play

Avogadro's number Student activity Play