Reciprocals of basic trigonometric ratios Student activity Play

Selected physical properties of oxides Chart Play

Silicon and aluminium oxides Animation Play

Sodium, magnesium and aluminium oxides Animation Play

Solving basic trigonometric equations Student activity Play

Solving basic trigonometric equations Whiteboard exercise Play

Solving basic trigonometric equations involving the sine function Student activity Play

Solving basic trigonometric equations involving the sine function Whiteboard exercise Play

Structure of oxides Student activity Play

The acidic properties of non-metal oxides Student activity Play

The action of sulphuric(VI) acid on copper(II) oxide Animation Play

The basic mechanisms of evolution Slideshow Play

The basic properties of matter in its three different physical states Whiteboard exercise Play

The basic properties of metal oxides Student activity Play

The basic properties of metal oxides Whiteboard exercise Play

The basic properties of the hydroxides of alkali metals Whiteboard exercise Play

The basic properties of the hydroxides of alkali metals Student activity Play

The basic properties of the oxides of alkali metals Student activity Play

The basic properties of the oxides of alkali metals Whiteboard exercise Play

The cell – the basic unit of life Slideshow Play

The cell – the basic unit of life Slideshow Play

The cell – the basic unit of life Student activity Play

The dimensions of the paper sizes Whiteboard exercise Play

The electrical conductivity of oxides Whiteboard exercise Play

The elements of life Student activity Play