Non-stoichiometric ratio of quantities of reactants Student activity Play

Not all collisions are effective Whiteboard exercise Play

Not all collisions are effective Student activity Play

Not all reactions involve collisions Student activity Play

Observation of the temperature changes of the system during a chemical reaction Animation Play

Order of integers Student activity Play

Other nastic movements – chemonasty and seismonasty Student activity Play

Other physical and chemical properties of carboxylic acids Whiteboard exercise Play

Other physical and chemical properties of carboxylic acids Student activity Play

Other physical properties of alkanes Whiteboard exercise Play

Other physical properties of alkanes Student activity Play

Other types of energy Student activity Play

Other types of energy Whiteboard exercise Play

Other uses of halogens and their compounds Student activity Play

Other ways to accelerate chemical reactions Student activity Play

Oxidation Illustration Play

Oxidation states of nitrogen in its chemical compounds Whiteboard exercise Play

Oxidation states of the p-block elements in their commonest chemical compounds Student activity Play

Parallelograms, rectangles, rhombuses and squares – properties of diagonals Whiteboard exercise Play

Parallelograms, rectangles, rhombuses and squares – properties of diagonals Student activity Play

Parallelograms, rhombuses and trapeziums – properties of angles Whiteboard exercise Play

Parallelograms, rhombuses and trapeziums – properties of angles Student activity Play

Periodic trends in the chemical properties of elements Class activity Play

Periodic trends in the chemical properties of elements Whiteboard presentation Play

Petrol combustion Animation Play