Water pressure Animation Play

Water solutions of sulphuric acid and sulphurous acid Whiteboard exercise Play

Weather forecasting Student activity Play

Weather forecasting Simulation Play

Weather forecasting Whiteboard exercise Play

Weight Class activity Play

What affects refraction? Student activity Play

What affects refraction? Whiteboard exercise Play

What affects refraction? Simulation Play

What is cracking? Student activity Play

What is the effect of temperature and pressure on the solubility of gases? Slideshow Play

Where does the buoyant force come from? Animation Play

Where does the buoyant force come from? Whiteboard exercise Play

Where does the buoyant force come from? Student activity Play

Why does the electronegativity change across a period? Animation Play

Why don't solids change their shape spontaneously? Animation Play

Why ecosystems change Slideshow Play

Why gas pressure increases with an increase in its temperature Animation Play

Why metamorphic rocks have different properties from the parent rocks Animation Play

Work and change in potential energy Animation Play

Work causes a change in energy Student activity Play

Work causes a change in energy Whiteboard exercise Play

Work causes a change in energy Simulation Play

Worked examples Student activity Play

 When a function does not change its sign Animation Play