Diffraction and interference Whiteboard presentation Play

Diffraction of electrons – the Davisson-Germer experiment Animation Play

Diffraction of electrons – the Davisson-Germer experiment Whiteboard exercise Play

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

Dimensions of the figure Animation Play

Dividing into a given ratio Student activity Play

Dot plot Animation Play

Dot plot Student activity Play

Dot plot – graphical representation of variables Whiteboard exercise Play

Drag force Whiteboard exercise Play

Drawing a parallelogram Whiteboard exercise Play

Drawing a parallelogram and calculating its area Whiteboard exercise Play

Drawing a polygon Whiteboard exercise Play

Drawing a polygon Whiteboard exercise Play

Drawing pins Animation Play

Dynamometer Simulation Play

Easy calculations Student activity Play

Eclipses Whiteboard presentation Play

Eclipses Class activity Play

Effect of concentration on the reaction rate. Rate equation Whiteboard presentation Play

Effect of concentration on the reaction rate. Rate equation Class activity Play

Eight 1-cm cubes Animation Play

Energy, power and intensity of a wave Animation Play

Energy, power and intensity of a wave Student activity Play

Estimating areas Student activity Play