This title supports the following learning objectives for Key Stage 2 science: Compare and group materials together, according to whether they are solids, liquids or gases; Observe that some materials change state when they are heated or cooled; Identify the part played by evaporation and condensation in the water cycle; Know that some materials dissolve in liquid to form a solution, and describe how to recover a substance from a solution; Use knowledge of solids, liquids and gases to decide how mixtures might be separated, including through filtering, sieving and evaporating; Demonstrate that dissolving, mixing and changes of state are reversible changes; Explain that some changes result in the formation of new materials, and that this is not usually reversible.
Ruth Owen has written more than 400 children's books. She writes on many subjects but her favourite topics are science and nature to research and make accessible for young readers.