A series of twenty non-fiction science readers which engages children in the world around them. Is the tongue a muscle? How do our bones move? Why do we sneeze? You can find the answers to these and other questions about how the body works in Why Does My Heart Pump? ISBN: 9780521137423 Kiadó: CambridgeUniversityPress Szerző: HelenBethune Súly: 100g
