Emission spectrum of excited atoms Animation Play

Energy and amplitude Student activity Play

Energy, power and intensity of a wave Student activity Play

Energy, power and intensity of a wave Animation Play

Energy, power and intensity of a wave Animation Play

Energy, power and intensity of a wave Whiteboard exercise Play

Equilibrium of forces – Newton's First Law of Motion Whiteboard exercise Play

Equilibrium of forces – Newton's First Law of Motion Student activity Play

Factorising perfect square trinomials – common factor first Whiteboard exercise Play

Fertilization and the first weeks of the embryo's life Student activity Play

Fertilization and the first weeks of the embryo's life Whiteboard exercise Play

Field changes Whiteboard exercise Play

Finding the common ratio and the first term of the geometric series Whiteboard exercise Play

Finding the first five terms in a sequence Whiteboard exercise Play

Finding the first term and the common ratio of the geometric sequence Whiteboard exercise Play

Finding the sine of an angle lying in the first quadrant Whiteboard exercise Play

First and second differences – maths investigations Student activity Play

First and second differences – maths investigations Whiteboard exercise Play

First organic compounds Illustration Play

First parachute jumps Animation Play

First steps in microbiology Student activity Play

Fixed-end reflection Simulation Play

Fixed-end reflection Animation Play

Fixed-end reflection Student activity Play

Fixed-end reflection Whiteboard exercise Play