The heart – the main organ of the circulatory system Slideshow Play

The isomerism of alkanes Animation Play

The main features of mitosis Animation Play

The main features of mitosis Animation Play

The main stages in the development of Plasmodium Illustration Play

The main terms describing the structure of the atom Whiteboard exercise Play

The main types of biome Illustration Play

The octane rating of petrol Whiteboard exercise Play

The octane rating of petrol Student activity Play

The order of organisms in a food chain Whiteboard exercise Play

The passage of electrons through the electron transport chain Animation Play

The passage of electrons through the electron transport chain Student activity Play

The polymerase chain reaction Student activity Play

The stability of a nucleus and the binding energy Animation Play

The structure of alkanes (1) Student activity Play

The structure of alkanes (2) Student activity Play

Trophic levels – positions in the food chain Whiteboard exercise Play

Trophic levels – positions in the food chain Student activity Play

Typical food chain Animation Play

Using the chain rule Whiteboard exercise Play

What happens during thermal cracking? Animation Play

What type of connection is it? Student activity Play