Explore our World Primary CLIL Readers are graded readers from levels 1-6. They cover a range of subjects and themes, promoting Content and Language Integrated Learning (CLIL) . No Bones! (Science) goes deep into the Animal Kingdom to find out about invertebrates. What is the largest invertebrate in the world? Which animals can change their shape and colour? Which invertebrates have got a poisonous bite? Components Reader with DIGI MATERIAL cross-platform application (iOS, Android, Windows, MacOSX)