Diffraction Slideshow Play

Diffraction Student activity Play

Diffraction of sound waves Student activity Play

Diffraction of sound waves Animation Play

Diffraction of sound waves Animation Play

Discontinuous variation Student activity Play

Effect of reactant particle size on the rate of a chemical reaction Student activity Play

Electronegativity and the size of the atom Animation Play

Emmanuel's kite Animation Play

Enthalpy of hydration Student activity Play

Factors affecting dispersion forces Student activity Play

Factors affecting enthalpy of hydration Animation Play

Factors affecting the lattice enthalpy Animation Play

Factors increasing and decreasing the population size Whiteboard exercise Play

Factors influencing fluctuations in population size Animation Play

Field size and the numbers of partridges Animation Play

Heat loss due to the shape of a house and the windows size Student activity Play

Heat loss due to the shape of a house and the windows size Simulation Play

Heat loss due to the shape of a house and the windows size Whiteboard exercise Play

How to write very big and very small numbers Student activity Play

Images in lenses Student activity Play

Individuals; populations and population size Whiteboard exercise Play

Individuals; populations and population size Student activity Play

Influence of predators on the population size of their prey Whiteboard exercise Play

Influence of predators on the population size of their prey Student activity Play