Solving triangles Whiteboard exercise Play

Solving trigonometric equations Student activity Play

Solving trigonometric equations using the tangent function Whiteboard exercise Play

sp3 Hybridisation Student activity Play

Special location of terminal side Animation Play

Standard position of an angle Animation Play

Statements about periscopes Whiteboard exercise Play

Stationary waves Student activity Play

Stationary waves Animation Play

Stereochemistry of the C=C bond in ethene Animation Play

Structure and naming of carboxylic acids Student activity Play

Structure and properties of water Student activity Play

Structure of oxides Student activity Play

Structure of the C=C bond Student activity Play

Structures of benzene Animation Play

Sulphur tetrafluoride molecule Animation Play

Sulphur(VI) fluoride (or hexafluoride) molecule Animation Play

Sum of angles in a quadrilateral Animation Play

Sum of angles in a triangle Animation Play

Sum of angles in quadrilaterals Student activity Play

Sum of the angles in a cyclic quadrilateral Animation Play

Sum of the angles in a quadrilateral Simulation Play

Sum of the angles in a quadrilateral – proof Animation Play

Sum of the angles in a triangle – proof Animation Play

Sum of two adjacent angles of a parallelogram Animation Play