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

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

Effects of changing carbon dioxide concentrations in the Earth's atmosphere Simulation Play

Emission of light Animation Play

Energy, power and intensity of a wave Whiteboard exercise Play

Energy, power and intensity of a wave Student activity Play

Environmental effects of fuel combustion Student activity Play

Environmental effects of fuel combustion Whiteboard exercise Play

Events causing changes in the concentration of oxygen in the Earth's atmosphere Whiteboard exercise Play

Evolution of the Earth's atmosphere Animation Play

Exploration of the Solar System Student activity 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

Fresnel lens Animation Play