Join the Comet Street Kids to find out about the different states of matter. Discover how the Ancient Greeks investigated and explained these states, and how we can use the terms 'solid, liquid or gas' to classify pretty much everything in our world! Solid, Liquid or Gas? is part of the Galaxy range of books from Rising Stars Reading Planet. Galaxy provides captivating fiction and non-fiction for Pink A to White band. The rich collection of highly decodable books immerses children in a range of cross-curricular topics and genres. Reading Planet books have been carefully levelled to support children in becoming fluent and confident readers. Each book features useful notes and activities to support reading at home as well as comprehension questions to check understanding.