The reaction of gaseous ammonia with gaseous hydrogen chloride Animation Play

The relationship between phase transitions and pressure Animation Play

The relationship between phase transitions and pressure Student activity Play

The relationship between phase transitions and pressure Whiteboard exercise Play

The states of matter Whiteboard presentation Play

The states of matter Class activity Play

The velocity of wave propagation Student activity Play

The velocity of wave propagation Animation Play

The wavelength and the velocity of wave propagation Whiteboard exercise Play

The wavelength and the velocity of wave propagation Student activity Play

The properties of a beam of light Whiteboard exercise Play

Three-phase current Animation Play

Three-phase current Whiteboard exercise Play

Three-phase current Student activity Play

Types of phase Slideshow Play

Using mean bond enthalpies in calculations. Part 1 Student activity Play

Vapour pressure and the temperature Animation Play

Wave interference Simulation Play

Wave interference Student activity Play

Wave interference Whiteboard exercise Play

Where will we see interference fringes? Simulation Play

Where will we see interference fringes? Whiteboard exercise Play

Where will we see interference fringes? Student activity Play