The use of the aufbau principle to predict the electron configurations of atoms (in their ground states), and therefore explain the layout of the p
As part of the new 'How science works' programme of study for key stage 4 (14-16 year-olds) taught in England and Wales, alternative layo
Students often struggle to determine whether changes in matter are physical or chemical, for example, they may have difficulty labelling a candle m
Learn how to set up a hydrogen fuel cell by extending an activity most schools already do – the electrolysis of ‘water’.
Well, of course you know that a battery is made of cells in series, but I have just discovered a great way to show this to a class.