Dative bond in the ammonium cation Animation Play

DDT – a persistent insecticide Animation Play

De Méré's Paradox Animation Play

Dealing with very large and very small numbers Animation Play

Death rate and survival rate in the mute swan Animation Play

Decantation Animation Play

Decantation Animation Play

Decarboxylation Animation Play

Decay of uranium Animation Play

Deceleration Animation Play

Decimal approximation of the square root of 5 Animation Play

Decimal places and significant figures Animation Play

Decimal with period 6 Animation Play

Decimals Animation Play

Decimals with period 2 Animation Play

Decomposers Animation Play

Decomposers Animation Play

Decomposing by factorising the denominator Animation Play

Decomposition Animation Play

Decomposition of a radioactive substance Animation Play

Decomposition of a rational expression with an arbitrary denominator Animation Play

Decomposition of a simple rational expression Animation Play

Decomposition of ammonia on a metal surface Animation Play

Decomposition of calcium carbonate Animation Play

Decomposition of calcium carbonate Animation Play

Decomposition of hydrogen iodide Animation Play

Decomposition of hydrogen peroxide Animation Play

Decomposition of hydrogen peroxide Animation Play

Decomposition of hydrogen peroxide Animation Play

Decreasing the concentrations of reacting substances Animation Play