Everything we can see and touch, and quite a lot that we can’t as well, is made of tiny particles called atoms. Some substances, like particles of this iron, contain only one kind of atom. Iron is an ...

The questions in this quiz are suitable for GCSE chemistry students studying pure substances and mixtures, paper chromatography and distillation. If you struggled with the quiz, don't panic - we've ...

Students will learn how to categorize matter as either pure substances or mixtures. Students will apply tests, based on physical properties of matter samples, to determine whether a mixture is ...