These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop the idea that mixtures do not have precise melting and boiling points. Using properties that depend on the material only to...

These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop the idea of a substance as a kind of ‘stuff’ which has a definite melting point....

This lecture from the Lindau Nobel Laureate Meetings outlines the development of the field of quantum mechanics. The lecture describes the work of Planck, Einstein and Bohr and includes the idea of wave-particle duality, the photoelectric effect to Bohr's model of atomic structure. The lecture's emphasis is on the...

In this practical investigation, students will perform a combustion reaction using a mixture of alcohol and air in a plastic water...