Water and ice at equilibrium Animation Play

Water solutions of sulphuric acid and sulphurous acid Whiteboard exercise Play

Wave velocity and tension Student activity Play

Wave velocity and tension Whiteboard exercise Play

Waves in liquids and solids Animation Play

Weight Class activity Play

What affects refraction? Simulation Play

What affects refraction? Whiteboard exercise Play

What affects refraction? Student activity Play

What does the magnitude of work done depend on? Student activity Play

What does the magnitude of work done depend on? Whiteboard exercise Play

What is going on inside there? Student activity Play

What is going on inside there? Whiteboard exercise Play

What is the direction of the electromagnetic force? Student activity Play

What is the direction of the electromagnetic force? Simulation Play

What is the direction of the electromagnetic force? Slideshow Play

When is work equal to zero? Animation Play

Where is the parcel going to land? Whiteboard exercise Play

Where is the parcel going to land? 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

Work Student activity Play

Work and change in potential energy Animation Play

Work causes a change in energy Whiteboard exercise Play