The Audio CD Pack contains a copy of the book along with an audio CD with a recording of the complete text in both British and American English. Listen and read to discover all about our galaxy and everything in the universe... What are stars made of? When did the first person walk on the Moon?Read and discover more about the world ¿ in English! This level is aimed at confident, high-level, young learners of English and contains 1,050 headwords.Read and discover all about our galaxy and everything in the universe. What are stars made of? When did the first person walk on the moon?