Half-life for first-order reactions Student activity Play

Hardy–Weinberg equilibrium Illustration Play

Harmonic motion Student activity Play

Heterogeneous catalysis Student activity Play

Heterogeneous catalysis Whiteboard exercise Play

How can we check whether a given substance is an element or a compound? Animation Play

How carbonate ions react with metal(II) and metal(III) aqua ions Animation Play

How do buffers work? Whiteboard exercise Play

How do buffers work? Student activity Play

How do temperature changes affect an equilibrium? Animation Play

How does an electric current decompose water? Student activity Play

How does an electric current decompose water? Whiteboard exercise Play

How many different divisors does a natural number have? A more difficult problem Student activity Play

How many divisors? Whiteboard exercise Play

How many divisors? Animation Play

How to determine the centre of gravity Student activity Play

How to determine the centre of gravity Animation Play

How to determine the centre of gravity Whiteboard exercise Play

How to find the centre of gravity? Animation Play

How to lift a heavy weight? Animation Play

How to measure gravitational acceleration? Student activity Play

How to measure gravitational acceleration? Slideshow Play

How to measure gravitational acceleration? Whiteboard exercise Play

How to plot a displacement–time graph Animation Play

How will the equilibrium change when the pressure is changed? Animation Play