Density Class activity Play

Density Whiteboard presentation Play

Density of alkali metals Student activity Play

Density of alkali metals Animation Play

Describing the route of the ant Student activity Play

Differences between diffusion and osmosis Animation Play

Diffraction Slideshow Play

Diffraction Student activity Play

Diffusion and osmosis – passive transport Student activity Play

Direction of a sailing ship Animation Play

Direction of spontaneous reaction Animation Play

Directions of vectors Whiteboard exercise Play

Directions of vectors Student activity Play

Directions of vectors according to the compass Whiteboard exercise Play

Displacement vector Student activity Play

Displacements Animation Play

Drawing opposite vectors Whiteboard exercise Play

Drawing velocity vectors Whiteboard exercise Play

Dynamometer Simulation Play

Early attempts to classify chemical elements Student activity Play

Early attempts to classify chemical elements Whiteboard exercise Play

Effect of temperature on chemical equilibrium Student activity Play

Electric forces Animation Play

Electric forces Animation Play

Electrical charge of metal ions Student activity Play