A mass spectrometer Illustration Play

A thickness measuring device Animation Play

Analogue and digital devices Slideshow Play

Analogue and digital signals Student activity Play

Angle of depression Student activity Play

Angle of depression Simulation Play

Angle of elevation Student activity Play

Animal and plant cells Whiteboard presentation Play

Are all atoms of the same element identical? Student activity Play

Atomic spectra of elements Student activity Play

Democritus's atomic theory Animation Play

Density of liquids Whiteboard exercise Play

Density of liquids Student activity Play

Density of liquids Whiteboard exercise Play

Distillation apparatus Illustration Play

Distilled water Student activity Play

Early atomic theories Student activity Play

Echolocation Student activity Play

Echolocation Animation Play

Echolocation Whiteboard exercise Play

Energy and amplitude Student activity Play

Low frequency active sonar Illustration Play

Mass spectrometer Student activity Play

Noise pollution Student activity Play

Practical application of the Doppler effect Student activity Play