Deductive reasoning and Venn diagrams Whiteboard exercise Play

Demand for energy Slideshow Play

Density and the molecular structure of matter Chart Play

Density and the molecular structure of matter Student activity Play

Deriving the expression for free energy change Animation Play

Describing data – mean, median, mode Student activity Play

Describing the graph Whiteboard exercise Play

Determination of enthalpy change in combustion reactions Whiteboard exercise Play

Determination of enthalpy change in combustion reactions (1) Student activity Play

Determination of enthalpy change in combustion reactions (2) Student activity Play

Determining standard enthalpies of reaction Whiteboard exercise Play

Determining the mean bond enthalpy for polyatomic molecules Animation Play

Development - energy Slideshow Play

Development - waste Slideshow Play

Diagram of a series Animation Play

Diagram of igneous rock formation Whiteboard exercise Play

Diagram of parthenogenesis in aphids Illustration Play

Diagram of protein synthesis in the organism Illustration Play

Diagram of reproduction by division in starfish Illustration Play

Diagram of the Local Group Illustration Play

Diagram of the Van de Graaff generator Whiteboard exercise Play

Different forms of energy Simulation Play

Different types of chemical energy Slideshow Play

Different types of energy Animation Play

Diffraction of electrons – the Davisson-Germer experiment Student activity Play