Born-Haber cycle Student activity Play

Born–Haber cycle Class activity Play

Born–Haber cycle Whiteboard presentation Play

Born–Haber cycle for sodium chloride Animation Play

Calculating surface area Animation Play

Calculating the area of a circle Whiteboard exercise Play

Calculating the diameter of the circle Whiteboard exercise Play

Calculating the radius Whiteboard exercise Play

Calculating the radius of the circle Whiteboard exercise Play

Calculating the radius, given the area Student activity Play

Calculations involving the calculator Animation Play

Calculations involving π Animation Play

Causes of ion formation (1) Student activity Play

Central and inscribed angles Student activity Play

Central and inscribed angles on the same arc Whiteboard exercise Play

Centre of a circle at an arbitrary point Animation Play

Centre of enlargement Student activity Play

Centre of enlargement Whiteboard exercise Play

Change in the atomic radius across Period 3 Animation Play

Change in the atomic radius across Period 3 Illustration Play

Changes in atomic radius within a group of s-block elements Animation Play

Changes in the atomic radius of s-block elements within the period Animation Play

Changes in the first ionisation energy across Period 3 Animation Play

Changes in the properties of the oxides of Period 3 Whiteboard exercise Play

Chemical bonding in the chlorides of Group 2 Whiteboard exercise Play