Enthalpy and entropy changes Animation Play

Enthalpy changes in the solution process Whiteboard presentation Play

Enthalpy changes in the solution process Class activity Play

Enthalpy of formation of methane Animation Play

Enthalpy of formation of neonium chloride Whiteboard exercise Play

Enthalpy of hydration Student activity Play

Enthalpy of solution. Part 1 Student activity Play

Environmental factors necessary for germination Student activity Play

Environmental factors that affect plants Whiteboard exercise Play

Epidermal tissue – structure Student activity Play

Epidermis and rhizodermis Whiteboard exercise Play

Essential minerals Student activity Play

Establishing systematics Whiteboard exercise Play

Establishing systematics – the work has only just begun Student activity Play

Establishing the formula of a compound Animation Play

Eurytopic; stenotopic and ubiquistic plants Simulation Play

Example of simple molecular solid: carbon dioxide Simulation Play

Examples of chemical reactions Whiteboard exercise Play

Examples of plant adaptations Illustration Play

Excretion Student activity Play

Expanded formulae Animation Play

Experimental determination of enthalpy of solution Student activity Play

Extraction of copper Whiteboard exercise Play

Extraction of copper Student activity Play

Factors affecting dispersion forces Student activity Play