Matter is made up of small particles called atoms. Atoms can exist on their own or together as molecules. Atoms are very small and around 100,000,000 of them side by side would measure 1 centimetre.
You will complete eight required practical activities if you are studying GCSE Physics and 21 if you are studying GCSE Combined Science. You could be asked questions about the methods, safety ...
Each subject and exam board has its own set of grade boundaries, determining the minimum number of marks required to achieve each grade.