Water and respiration Student activity Play

Water solutions of sulphuric acid and sulphurous acid Whiteboard exercise Play

Wavelength, frequency and energy of electromagnetic radiation Animation Play

Weight Class activity Play

What affects refraction? Whiteboard exercise Play

What affects refraction? Student activity Play

What affects refraction? Simulation Play

What does chemosynthesis involve? Student activity Play

What does digestion involve? Whiteboard exercise Play

What does digestion involve? Student activity Play

What does efficiency depend on Animation Play

What does 'horsepower' derive from? Animation Play

What happens to the energy stored in food? Slideshow Play

What is a biogeochemical cycle? Student activity Play

What is aerobic respiration? Student activity Play

What is anaerobic respiration? Student activity Play

What is anaerobic respiration? Whiteboard exercise Play

What is bond dissociation enthalpy? Animation Play

What is photosynthesis? Student activity Play

What is the difference between potential energy and potential? Whiteboard exercise Play

What is the difference between potential energy and potential? Student activity Play

What is the enthalpy of hydration? Animation Play

What part of potential energy becomes converted? Animation Play

What will happen when we increase the voltage two-fold? Animation Play

When does a force perform no work? Whiteboard exercise Play