This application, designed for Third Year students, offers a complete review solution in Physics and Chemistry, bringing together all the essential lessons without requiring an Internet connection.It is a powerful tool for quickly and efficiently memorizing each lesson.Our app stands out for its ease of use, it eliminates the need to carry around a stack of papers and gives you the freedom to access revision sheets anywhere, without the need for a manual or other media .In short, it is an essential resource for Third Year students who are looking for an exhaustive and practical summary of all the Physics and Chemistry lessons at their level.Summary :Chap 1: From the Universe to atomsChapter 2: Ions in our daily livesChap 3: When acids and bases reactChap 4: DensityChapter 5: Speed and movementChapter 6: ForcesChapter 7: WeightChapter 8: Conservation of energyChap 9: Resistance and Ohms lawChapter 10: Power and energy in electricityChapter 11: Signals beyond human perceptionThis is a Summarization for educational purposes, not a book so there is no copyright violation.