A comprehensive reference for IPA (Ilmu Pengetahuan Alam), RPAL ++ is written to aid mastery of scientific concepts and knowledge among primary school students. The contents in this book are organized in a systematic, manageable and progressive manner to facilitate effective revision making it a perfect and must-have reference for every student. Each chapter begins with a Concept Map to make learning more meaningful as students will be able to visualize how all the concepts and facts within the chapter are related. Clear illustrations and photographs are provided to further enhance understanding.