This is an exercise book for Tahun 3 Sains students. It is designed to assess every subtopic and Tahap Penguasaan according to the latest syllabus, the DSKP. The Subtopic and Tahap Penguasaan are indicated for each question for easy reference. KBAT questions are included to familiarize students with higher order thinking skills questions. In addition, 2 sets of Pentaksiran Formatif, 1 set of Mid-year Assessment and 1 set of End-of-Year Assessment papers are included to help the students prepare for monthly tests, mid-year and end-year exams.