The oesophagus – transport of food to the stomach Slideshow Play

The sliding filament theory of muscle contraction Whiteboard exercise Play

The sliding filament theory of muscle contraction Student activity Play

The stomach – further mechanical breakdown and digestion of proteins Student activity Play

The structure of skeletal muscles Student activity Play

The trachea – a tube of variable diameter Student activity Play

The withdrawal reflex – an example of an unconditioned reflex Animation Play

Time and distance Class activity Play

Time and distance Whiteboard presentation Play

"Two hearts" during physical effort Animation Play

Types of muscles Student activity Play

Unconditioned reflexes Student activity Play

Uses of thermal expansion Slideshow Play

Venules and veins Student activity Play

Wax Animation Play