Student holding a Bac S with honors, I offer my help for discounts.

Science becomes much easier when each idea is explained clearly and connected to familiar examples. In my online lessons, I help middle- and high-school students understand challenging topics in chemistry, biology, physics and general science without relying only on memorization. These lessons are suitable for students who: Find science difficult or confusing Need help with homework and school assignments Want to improve their examination results Have missed important foundational concepts Need additional practice with calculations, diagrams or scientific terminology Want to become more confident before a test Every lesson is adapted to the student’s grade level, school curriculum and current difficulties. Subjects covered Chemistry Atomic structure and the periodic table Chemical bonding Elements, compounds and mixtures Chemical reactions and equations Acids, bases and salts Mole concept and basic stoichiometry Solutions and concentration States of matter Organic chemistry fundamentals Biology Cells and cellular organelles Human body systems Respiration and circulation Genetics and inheritance Nutrition and digestion Ecology and ecosystems Immunity and diseases Plant and animal biology Homeostasis Physics Force and motion Work, energy and power Heat and temperature Light and sound Electricity and circuits Pressure and density Simple machines Measurement and scientific calculations Basic graphs and numerical problems General and environmental science Scientific method and experiments Matter and energy Earth and environmental science Pollution and climate Natural resources Food chains and ecosystems Data, graphs and scientific reasoning How the lessons work Before the lesson, students can share their textbook chapter, syllabus, worksheet or difficult topic. This allows me to prepare a lesson that directly matches what they are studying in school. A typical lesson includes: A short review of previous knowledge A clear explanation of the main concept Diagrams, examples and everyday applications Guided practice questions Independent questions to check understanding Correction of mistakes A brief summary and revision task I do not simply provide answers. I help students understand why an answer is correct and how to solve similar questions independently. Homework and examination support I can help students with: Understanding homework questions Revising difficult chapters Practising multiple-choice questions Solving science calculations Preparing short and long answers Reading and interpreting diagrams Understanding scientific experiments Preparing for school tests and final examinations Creating a manageable revision plan Identifying and improving weak topics I provide guidance and feedback while encouraging students to complete their own assessed work.

Chemistry is concerned with the physical and chemical properties of substances and the interaction of energy and matter. The study of Chemistry involves an investigation into chemical reactions and processes. The discipline seeks to explain and predict events at the atomic and molecular level. Through the principles of Chemistry, students will understand everyday life, nature and technology, and the significance of the well-being of man and the environment. Biology is the discipline in science which seeks to understand the organisation of the organic world through an exploration of the structure and function of life forms at the molecular, cellular, organismal and ecosystem levels, as well as the complex interactions and interdependencies which occur at each of these levels. This knowledge provides the foundation for understanding the opportunities for promoting the well-being of humans and other living organisms in the environment. It generates an awareness of the importance of our biodiversity and the unique role of humans in conserving, protecting and improving the quality of the biological environment for future generations.