Chemistry is generally known as the study of matter and the change of states, and our chemistry worksheets do their best to teach your child in an easily accessible manner. The study and observation of chemical reactions between particular substances as well as the composition, structure, and properties of matter are also covered in our chemistry revision, best used in addition with our other science worksheets. ‘Matter’ refers to anything on the planet and in the universe as a whole that has mass. While it’s just one branch of science, chemistry is typically seen as the ‘central science’ due to its ability to work together with other natural sciences.