I am a teacher who provides simplified explanations for all grades in the subjects of science, chemistry, physics, and biology, according to the ministerial, American, and British curricula. I am in person. 1- Chemistry: *First, I explain the basics of chemistry (atoms, molecules, chemical reactions, the periodic system of elements, and chemical reactions). (Properties of solids, liquids and gases, chemical bonding and radiation). *The periodic table and classification of elements. * Matter, elements, mixtures and separation methods. * Explanation of five types of chemistry (biological, organic, inorganic, physical, and biological) *Explanation of chemical analysis, chemical equilibrium, and transition elements. Biology: * Explanation of the cell as the building block of a living organism. *The function of reproduction in living organisms Cell division and meiosis Genetics and explanation and training on genetic issues * Training them on examination skills (blood sample examination, cross-section examination of a plant stem, nerve tissue examination) * Explaining detection skills (determining blood types, water contamination, milk contamination) Developing simple hand skills (using a microscope, dissection, and fine drawing skills) Physics: * Explanation and simplification of the four most important topics in physics (mechanics, dynamics, electromagnetism,) *Electric current, Ohm's law and Kirchhoff's law. Magnetic effect And electromagnetic current.