6.1.1 Energy changes in a system, and the ways energy is stored before and after such changes, 6.1.2 Conservation and dissipation of energy, 6.2.1 Current, potential difference and resistance...
Introduction to the periodic table and the structure of the atom, Group 1 Metals Reacting With Oxygen, Chlorine and Water,, Sructure and Bonding of Group 1 Metals and Group 7 Non Metals...