The biuret reaction Animation Play

The circle and the oval Animation Play

The circle inscribed in a square Whiteboard exercise Play

The collision of molecules Animation Play

The collision theory Student activity Play

The concept of the yield of a reaction Slideshow Play

The converse of the Pythagorean theorem Student activity Play

The cosine rule Whiteboard presentation Play

The cosine rule Class activity Play

The course of the reaction Animation Play

The cube root Animation Play

The dark side of antibiotic use Student activity Play

The dark side of the Moon Illustration Play

The diagonal of a square Whiteboard exercise Play

The diagonal of a square Student activity Play

The dimensions of the paper sizes Whiteboard exercise Play

The distance formula – applications Student activity Play

The economic meaning of reaction rate Whiteboard exercise Play

The effect of surface area on reaction rate Whiteboard exercise Play

The effect of surface area on reaction rate Student activity Play

The effect of temperature on an endothermic reaction Animation Play

The energetic diagram for alkane combustion Animation Play

The energy changes during the course of a chemical reaction Animation Play

The energy due to nuclear fission Whiteboard exercise Play

The energy due to nuclear fission Student activity Play