3Discover our new resources for the Cambridge International Primary and Lower Secondary Curriculum Frameworks These workbooks are filled with exercises that help your students practise what they have learnt and encourage them to think and work scientifically. Focus, Practice and Challenge exercises provide clear progression through each topic, helping learners see what they've achieved. The drawing and writing activities give learners more experience with scientific vocabulary, which helps them to develop their language skills. These different types of exercises and activities make the book ideal for use in the classroom or as homework.