How to construct an isosceles triangle Student activity Play

How to estimate the gradient of a curve Animation Play

How to find the system of equations Student activity Play

How to find the system of equations Whiteboard exercise Play

Hydrogen atoms on oxygen or nitrogen are usually not coupled to their neighbours Animation Play

Hydrogen spectral series Illustration Play

Identification of molecular ion: 'nitrogen rule' Animation Play

Identification of the functional groups in the molecule Animation Play

Imperial units of length Animation Play

Imperial units of length Student activity Play

Inequalities Whiteboard presentation Play

Inequalities Class activity Play

Inequalities (1) Whiteboard presentation Play

Inequalities (1) Class activity Play

Infra-red radiation used in spectroscopy Student activity Play

Infra-red spectra of methyl propanoate and ethyl ethanoate Illustration Play

Infra-red spectrometer Animation Play

Infra-red spectrometry Illustration Play

Infra-red spectroscopy Slideshow Play

Infra-red spectrum Animation Play

Infra-red spectrum of 1,3-dimethylbenzene Illustration Play

Infra-red spectrum of butylamine Illustration Play

Infra-red spectrum of commercial gasoline Whiteboard exercise Play

Infra-red spectrum of hex-1-ene Illustration Play

Infra-red spectrum of hex-1-yne Illustration Play