Infrasound and ultrasound Class activity Play

Intensity and frequency of sound Simulation Play

Intensity of a sound wave Simulation Play

Intensity of a sound wave Animation Play

Intensity of a sound wave Student activity Play

Intensity of a sound wave Whiteboard exercise Play

Interference of sound waves Whiteboard presentation Play

Interference of sound waves Class activity Play

Laser Class activity Play

Laser Whiteboard presentation Play

Light Student activity Play

Light Student activity Play

Light and sound Student activity Play

Light and sound Whiteboard exercise Play

Lipids – the energy source of the cell Whiteboard exercise Play

Lipids – the energy source of the cell Student activity Play

Living things Slideshow Play

Loudness Simulation Play

Loudness Student activity Play

Loudness Whiteboard exercise Play

Major sources of energy Slideshow Play

Mensuration of velocity Animation Play

Microwaves in the kitchen and in a mobile phone Student activity Play

Microwaves in the kitchen and in a mobile phone Whiteboard exercise Play

Middle ear bones Illustration Play