Incredible Earth ( Read and Discover Level 4 )

Read and Discover is a series of graded Readers from Levels 3 to 6, suitable for students of English from age eight and older.The levels have been designed to match the language content of Elementary English language coursebooks from Grades 3 to 6.
These reading books provide a wide variety of non-fiction topics that can be used for cross-curricular work or for Content and Language Integrated Learning (CLIL). Read and Discover combines lively reading material with carefully graded language, enabling students to discover more about the world while learning English at the same time.

The audio has 2 versions - American and British