Sassi: Cracky the Dinosaur Junior Backpack

How does a yo-yo climb back up its string? Why does a boomerang come back to you? And how does a kaleidoscope work? These and other mind-bending questions are answered in this explanation text about how toys work.

ISBN: 9780007186273

This non-fiction book explores what it was like to live through the First World War, from life in the trenches and the weapons used on the battlefield, to the war effort at home and the role that children played. This title has been written in conjunction with the Imperial War Museum and includes fascinating photographs from their archives.

• Collins Big Cat Progress books are specifically designed for children at Key Stage 2 who have a Key Stage 1 reading level, giving them age-appropriate texts that they can read, building their confidence and fostering positive attitudes towards reading.

• Text type: A non-fiction recount

ISBN: 9780007519361