Decomposition of ammonia on a metal surface Animation Play

Density, compressibility, shape and volume Animation Play

Deriving the formula for the surface area of a sphere Animation Play

Diffuse reflection Student activity Play

Effect of concentration on the reaction rate. Rate equation Class activity Play

Effect of concentration on the reaction rate. Rate equation Whiteboard presentation Play

Emission of light Animation Play

Energy, power and intensity of a wave Student activity Play

Energy, power and intensity of a wave Whiteboard exercise Play

Fermat's Principle Simulation Play

Fermat's Principle Student activity Play

Finding a surface area Animation Play

Finding length of the space diagonal of a cube Whiteboard exercise Play

Finding the surface area of a cuboid Student activity Play

Finding the surface area of a cuboid Animation Play

Finding the surface area of a ring Student activity Play

Finding the surface area of a ring Whiteboard exercise Play

Finding the surface areas of solids Whiteboard exercise Play

First parachute jumps Animation Play

Floating on the surface Animation Play

Floating on the surface Whiteboard exercise Play

Floating on the surface Student activity Play

Focal length and the shape of a lens Student activity Play

Focal point and focal length Animation Play

Focal point of a concave mirror Whiteboard exercise Play